I decided to convert my off road Mini (t-03 chassis) to a 911 rally car. Here's a in progress shot. I went with the HPI RSR body and Fuchs wheels. Some of the mods to get this to work included making aluminum inner wheel halves to widen the wheels so the tires would fit. Wide HPI 12mm hex adapters to space the wheels out a little further, body mounts to mimic the 911 mounts, softer springs and spacers to raise the right height. To avoid the tires rubbing the stock motor I'm switching to a brushless outrunner, which is shorter. I'll start with a 800kv and see what the speed is like. The tires are a little on the fat side, but so far I haven't found anything else that works. The tires are RC10 1.6" i.d. x 3.0" o.d. rear buggy tires. I also used these tires with the Team Associated RC 10 (gold pan) rear wheels on the mini.