To start alphabetically, we kick things off with the brand that originally developed the 3800 V6 engine all the way back in the 1960s, Buick. Overall, the L36 found itself powering four different vehicles in Buick’s stable, usually being the base-level engine for these models. The first car it was available for was the Buick Riviera for its 1995 model year. This was the eighth generation for this two-door coupe that had been using the Series I L27 for a number of years, so with a new generation came a new engine. That tends to be the case with a lot of the vehicles the L36 was put into, as this was essentially the upgraded version of the previous generation.
Buick would subsequently roll out the L36 3800 on three more models over the next two years. The 1996 model year saw it placed under the hood of a Buick LeSabre four-door sedan. The following year, it was added to both the Park Avenue and Regal. Like the LeSabre, these are both four-door sedans with the Regal being the more luxury version of the Buick Century, which didn’t feature the L36. In the case of all four vehicles, the 3800 V6 would be the engine you would get either for the rest of the vehicle’s lifespan or until the Series II was supplanted by the Series III L26 in 2005, whichever came first.
Series II also featured a supercharged version of the L36 called the L67, which could be found in the Buick Regal GS and supercharged Park Avenue and Riviera models.