Parked in the parking lot east of the crime scene in "Upon Reflection" case, in between Vermont and New Hampshire Ave.

In Story, it can be found parked near Eagleson's Gun Store in "Buyer Beware" case, or in the parking lot of the Hall of Records in the "A Polite Invitation" case.
But in Free-Roam, you can find this vehicle parked in the parking lot, near the Los Angeles Examiner, shown in the picture below.

In Story, it can be found parked near the Central Gun during "Upon Reflection" case, or next to Kelso's Apartment in "A Polite Invitation" case.
In Free-Roam, you can find this vehicle parked in the parking lot of Alaco Station in Wilshire, shown in the picture below.

In Free-Roam, you can find this vehicle parked in the parking lot south of the Hall of Records landmark.

In Free-Roam, you can find this vehicle parked in the big parking lot surrounded by Melrose Ave., Heliotrope Dr. and Mariposa Street.


In Free-Roam, you can find this vehicle parked in the parking lot south of LA Public Library.

In Story, it can be found on the parking lot across the street from Central Police Station in the "A Marriage Made in Heaven" case.
In Free-Roam, you can find this vehicle parked in the parking lot near the LA Public Library, shown in the picture below.

In Story, it can be found at Kelso's Apartment during "A Polite Invitation" case.
In Free-Roam, you can find this vehicle parked also in the parking lot near the LA Public Library, shown in the picture below.

In Story, it can be found outside the Hollywood Police Station at the beginning of "The Naked City" case.
In Free-Roam, you can find this vehicle parked in the parking lot between Hawthorn and La Brea, shown in the picture below.

It can be found in the "The Set Up" case, as soon as the case starts, get out of the Boxing Stadium and onto the parking lot, it will be parked in the 3-rd parking space left of the clock, it will have a white roof on it.

In Story, it can be found on the parking lot behind the Numbers Operation building in "The Black Caesar" case.
In Free-Roam, you can find this vehicle parked in the parking lot between Hawthorn and Hollywood, shown in the picture below.

You can not miss this one, in "The White Shoe Slaying" case, when chasing after Richard Bates, the car that stops in the middle of the road with which you continue the chase, it's this car.

In Story, it can be found on the parking lot of the InstaHeat Factory in "The Gas Man" case.

In Story, it can be found in the parking lot of The Bamba Club, in "The Red Lipstick Murder" case.
In Free-Roam, you can find this vehicle parked in the parking lot between Wilshire and Benton Way, shown in the picture below.

In Story, it can be found behind The Bamba Club, in "The Red Lipstick Murder" case.
In Free-Roam, you can find this vehicle parked in the parking lot near Hotel Roosevelt, shown in the picture below.

In Story, it can be found on the parking lot behind the Maldonado Residence in "The Silk Stocking Murder" case, or in the Jennifer's driveway in "The Red Lipstick Murder" case.

In Story, it can be found in the parking lot of Hall of Records, in "A Polite Invitation" case.
In Free-Roam, you can find this vehicle parked in the alleyway between Mateo and Santa Fe streets, near National Biscuit Company, shown in the picture below.

In Free-Roam, you can find this vehicle parked in the parking lot of the Alaco Station, near L.A. Cold Storage, shown in the picture below.

In Free-Roam, you can find this vehicle parked on the gas station north-east of the Bullocks Wilshire, shown in the picture below.

In Free-Roam, you can find this vehicle parked in the parking lot between Hawthorn and La Brea, shown in the picture below.

In Free-Roam, you can find this vehicle parked in the parking lot north-east of the Pershing Square in Central, shown in the picture below.

In Free-Roam, you can find this vehicle parked in the parking lot north-east of the 6-th Street Viaduct, shown in the picture below.

In Story, it can be found in the parking lot of the LA Public Library, in "The Quarter Moon Murders" case, or next to Eagleson's Gun Store in the "Buyer Beware" case.
In Free-Roam, you can find this vehicle parked in the small parking lot near building, north-east of Pershing Square, shown in the picture below.

In Free-Roam, you can find this vehicle parked on the gas station north-east of the Bullocks Wilshire, shown in the picture below.

In Free-Roam, you can find this vehicle parked on the parking lot east of the National Biscuit Company, shown in the picture below.

In Free-Roam, you can find this vehicle parked on the gas station north-east of the Bullocks Wilshire, shown in the picture below.

In Free-Roam, you can find this vehicle parked behind a building, on the north-west part of the map, shown in the picture below.

In Free-Roam, you can find this vehicle parked on the parking lot, north-east of the Pershing Square, shown in the picture below.

In Free-Roam, you can find this vehicle parked on the roadway, on the north-west part of the map, shown in the picture below.

In Free-Roam, you can find this vehicle parked on the driveway of the house, north-east of the Bullocks Wilshire, shown in the picture below.

In Free-Roam, you can find this vehicle parked on the small parking lot in front of shops, north-west part of the map, shown in the picture below.

In Story, can be found near the crime scene barricade during "The Golden Butterfly" case.

In Free-Roam, you can find this vehicle parked on the parking lot between New Hampshire and Vermont streets, shown in the picture below.

In Free-Roam, you can find this vehicle parked on the parking lot of the restaurant, east of Bullocks Wilshire, shown in the picture below.

In Free-Roam, you can find this vehicle parked in the parking lot north-east of the 6-th Street Viaduct, shown in the picture below.

In Free-Roam, you can find this vehicle parked in the parking lot east of Christ Crown of Thorns landmark, shown in the picture below.

In Free-Roam, you can find this vehicle parked in the parking lot south of Angels Flight, shown in the picture below.

In Story, can be found on the parking lot of Hall of Records, in "The Quarter Moon Murders" case.

In Story, can be found on the parking lot behind Eagleson's Gun Store in "Buyer Beware" case, or at the curb of the Steffens' house in "The Gas Man" case.

In Free-Roam, you can find this vehicle parked in the military installation, south-east of the National Biscuit Company, shown in the picture below.

In Free-Roam, you can find this vehicle parked in the parking lot, below National Biscuit Company, shown in the picture below.

In Free-Roam, you can find this vehicle parked behind the wooden fence, right of the National Biscuit Company, shown in the picture below.

In Story, can be found parked in the parking lot in front of the Aleve Motel in "The Setup" case. (after asking about Candy Edwards)

In Free-Roam, you can find this vehicle parked in the driveway, west of The Good Samaritan Hospital, shown in the picture below.

In Free-Roam, you can find this vehicle parked on the parking lot, east of the Christ Crown of Thorns, shown in the picture below.

In Free-Roam, you can find this vehicle on the parking lot, near Brown Derby landmark, shown in the picture below.

In Story, parked behind the Maldonado Residence in "The Silk Stocking Murder" case.

In Story, in the parking lot beside Ray's Cafe, in the "A Marriage Made in Heaven" case.

In Free-Roam, you can find this vehicle on the parking lot, east of MacArthur Park landmark, shown in the picture below.

In Story, in the rear parking lot of the Bamba Club in "The Red Lipstick Murder" case.

In Story, in the parking lot across the Black Caesar Hut, in “The Black Caesar” case.

In Free-Roam, you can find this vehicle on the parking lot, north-east of the L.A. Cold Storage landmark, shown in the picture below.

In Free-Roam, you can find this vehicle on the parking lot of the factory, north-west part of the map, shown in the picture below.

In Free-Roam, you can find this vehicle parked behind the Hotel Roosevelt, shown in the picture below.

In Free-Roam, you can find this vehicle on the parking lot, right of the National Biscuit Company, shown in the picture below.

In Story, you can find this vehicle on the parking lot beside Eagleson's Gun Store in the"Buyer Beware" case.

In Story, you can find this vehicle in the fenced parking across from Cavanagh's Bar in "The Driver's Seat" case.

In Story, you can find this vehicle in the parking lot across the street from the Central Police Station in "The Driver's Seat" case.

In Free-Roam, you can find this vehicle parked in the military installation, south-east of the National Biscuit Company, parked in front of Main Building in the driveway, shown in the picture below.

In Free-Roam, you can find this vehicle parked at the fire station beside the Vice Precinct, shown in the picture below.

In Free-Roam, you can find this vehicle on the parking lot at the at the Good Samaritan Hospital landmark, shown in the picture below.

In Story, can be seen driving around the demolished house in Elysian Fields in the "House of Sticks" case.
In Free-Roam, could be seen driving around the MacArthur Park (during the day and evening.)

In Free-Roam, you can find this vehicle on the parking lot in front of the Union Station landmark, but can also been seen driving around regularly around Central part of the map.

In Story, can be found on the parking lot of the Rapid Exterminators building, in "A Different Kind of War" case.

In Story, on the parking lot in front of the Coroner office in "A Marriage Made in Heaven" case, or at the Sawyer House, in “The Gas Man” case.
In Free-Roam, you can find this vehicle parked in the alley behind Central Police Station.

In Free-Roam, you can find this vehicle only while driving around during day, they mostly spawn around the Wilshire area of the map, note that sometimes the van will disappear when out of focus, so make sure to keep camera on it the whole time until you enter it, you can see how the van looks below.

In Story, when chasing the Fleetwood Morgan in "The Black Caesar" case, you can see how it looks below.

In Free-Roam, you can find this vehicle parked in the alleyway north-east of the National Biscuit Company landmark, shown in the picture below.

In Free-Roam, it's a garbage truck, a bit harder to find, usually spawns around The Mayfair Hotel landmark.

In Street Crime "Hot Property" (Arson Desk), as soon as the car chase ends two trucks will be there (enter the one that is further away from suspect, otherwise the cutscene will trigger and the case will end.)

In Story, across the Schroeder's Apartment, behind tall fence in the "Upon Reflection" case.
In Free-Roam, you can find this vehicle parked on the loading dock, north-west part of the map, shown in the picture below.

Unlocked via Story, you will unlock the vehicle as soon as you are part of the Traffic Desk.

Unlocked via Story, you will unlock the vehicle as soon as you are part of the Vice Desk.

Unlocked via Story, you will unlock the vehicle while playing as Jack Kelso.

Unlocked via Story, one of the cases in which you can find it in, is "The Fallen Idol" case, as soon as you get to the crime scene it will be parked nearby.

Unlocked via Story, you will unlock the vehicle as soon as you start a New Game.

Unlocked via Story, you will unlock the vehicle as soon as you are part of the Arson Desk.

In Street Crime - "Bus Stop Shooting" (Arson Desk), when approaching scene of the crime, the two of them will be parked and used as the roadblock, you must enter one of them without triggering the cutscene and starting the case.

Unlocked via Story, you will unlock the vehicle as soon as you are part of the Homicide Desk.

Unlocked via Story, you can find it in "The Fallen Idol" case, as soon as you get to the crime scene it will be parked nearby.

These vehicles are easy to unlock and find, whenever you rank up, a question mark will appear on your map, and at these question marks you can find the Bonus Vehicles, they will usually be inside the Alaco Station garages, or normal garages.

Here is the picture of the Bonus Car locations on the map: