I started to design a scratch built chassis for the resin Dart body, then remembered some stuff I'd set aside and found a running HRS adjustable wheelbase chassis I bought but never used, and also a Carerra Mustang. The HRS chassis would have worked but the track was way too wide. I think I could have shortened the rear axle with a Dremel to get the rear wheels tucked inside the body, but the front axle holder was too wide all by itself.
So, I moved on to the Carerra Mustang which as a narrow track. In fact it was never a good runner on the oval because it was prone to rollovers and I had to add weight to the left side.

After Dremeling away some resin from inside the wheel wells of the body and narrowing the chassis to fit inside the rocker panels the two matched up nicely. I'm still working on the body mounts, but I was able to tape the body on well enough to run some qualifying laps and it ended up 22nd out of Trans Am 35 cars tested so far. This is good enough to be included into my 20 car TA series because of the history of the car, but if there are some simple tuning tips anyone has for this chassis I'll consider them.
I currently have PG-21104 tires on it but know they aren't the correct size, which I'll have to order. The narrow track doesn't seem to be an issue, but the E200 motor while listed at 21.5K rpms at 12 volts seems to lack some of the zip my Pioneer and faster Scalextric cars have.
Slothead