In this big Q&A session Killrob is answering a ton of small and large questions and discusses some of the design decisions that went into the game. If you look for a specific answer, check the list below with time markers.
The script to read along or check when you don't quite catch what I said: http://tinyurl.com/q9jgyps
1:02 Topic A: Hybrids, Electrics, Rotaries
5:28 Topic B: Diesels
9:51 Topic C: Driving Cars
12:44 Topic D:...