Westdyke Autos is a motorbike dealership located on Lemhi Street & Sacramento Avenue in Westdyke, Alderney. Inside, there are numerous NRG 900 variants; the RR and the F. The player can enter the building during the day and steal a motorbike. Although the dealership is closed at night, the player can still enter it by breaking the windows. Stealing any of the bikes will earn the player a 1-star wanted level. It is one of the four dealerships in Grand Theft Auto IV, the others being Grotti in Algonquin, Liberty City, along with Auto Eroticar and Big Paulie Budget Cars in Alderney.
- It's possibly a Shitzu dealer, as it only stocks the NRG 900 motorbike made by them.
- The term "dyke" is crude way to say lesbian. This is another example of Rockstar Games' sexual humor.
- If a player happens to park their car in the dealership, get out, and then get back in it, they will receive a one star wanted level. This glitch was also present at Auto Eroticar, Grotti Showroom, and Larry's RV Sales in Grand Theft Auto V.
- The radio station inside the dealership is Liberty Rock Radio 97.8.