Editing Vehicle Design Guide (section)

== Engine ==
Usually it's best to go with the biggest [[Engines|engine]] your car can fit [[Exposed Engine|unexposed]]. Going with a smaller engine is only worth considering if you really need the extra bulk freed up by having a smaller engine for something else. I wouldn't advise putting in anything smaller than the maximum engine the vehicle can fit unexposed in heavier/slower cars that already have issues with acceleration and speed.  An exposed engine will only take as much bulk up as the maximum bulk that the chassis can take unexposed.

'''Example:''' A Box Van has an engine bay that can take an unexposed engine of bulk 90 or an exposed engine of size 108. If a 5L V8 engine is installed in a Box Van, it will only take up 90 bulk, rather than the 100 bulk that the engine is listed as.