This top fuel dragster is RWD only, and using default power that you can get from Automation (so 11,000hp unfortunately). There's a V8 by default, but you can go to parts selector and put in a V16 if you want.
The body is full 7.6m regulation length, and I made the mod body available on automation's workshop, just keep in mind that this is not a straightforward body to work with, but here's the build video related to this -
Full Top Fuel Dragster 1.0
7.6m long, V8, or V16 engine options