We have both at our track, with the big three probably being AE, Yokomo, and Xray in that order.

The B7 looks like AE's take on what the willspeed conversions were doing.

I'd say regardless of the platform, I'd say first identify the things that matter to you. For example:

- Having local support of fellow racers
- Parts fitment and general quality
- Price of parts
- Newness of kit versus design (design if really new can have issues that need to be worked out, so watch for that)

All vehicles will have some issues and some pluses. Big thing is finding what works for you overall to deal with.