There are a few differences but I do not have a list or guide specifically for that. One of our guys went the HHR route and explained the process on his build log: http://dfkitcar.com/forum/index.php?threads/jim-mcdonald-extended-track-09-hhr-ss-tc-automatic.1347/
You'll see in the build log...
Hey guys, Adam from DF Kit Car here. Thought I'd drop in to answer questions if you guys have any.
I also wanted to share a video of a Goblin at a recent hill climb. Justin ended up getting fastest time of the day on his last run (the run in this video). He's got wings front an rear to get the...