Yeah after some thinking I have decided to put engine on back. I think if it were in front, the front would be to heavy. I'm starting the engine now and hopefully I will be able to put some pics up as soon as possible. The engine I have in mind is very complex and it will be one of the hardest modeling challenges I have…
I was thinking about putting the engine in the back. Most dune buggy's engines are placed that way. I do like the idea though so I might use it. As for the tire treads I agree now that you mention it, and I will make them less wide.
Engine looks nice. Maybe you can modify timing belt line a bit? It's very simple now. Chceck some references: Also there's a lot of sharp edges - check some refs: