28th April 2021 - Hybrid Motor, Engine Sizes and Engine Bay
If you have progressed enough up the engine tech tree you can now add an electric motor to your engine. This will in turn make your engine a hybrid. With various upsides and downsides. Like more power, peak power and torque will arrive sooner. However this will add a development cost and weight to the engine.

Engines now have a size rating. So the bigger block / displacement, tubos ect will now affect how big the engine is. That in turn you will need to keep track of as you will need to make sure the engine bay on your platform is big enough to fit it in.