TC cars
In my opinion, the most common on-road cars you'll see on the track here in the Northwest is either a AE TC6.1 or the XRAY T3. Parts availability at your local hobby shop (RC HObbies in Woodenville or FantasyWorld in Tacoma) would go to the TC6 and also parts are cheaper too. The XRAY parts are pricier and you'll more than likely have to order online but both stores do carry some parts. With the extra cost for XRAY parts you'll get back in durability and great parts fit. Just my opinion.