Hi Ben
As with all these types of questions most people will just recommend what they run.... I’d be no different plugging the Serpent SRX8, awesome car in all its guises!
https://www.serpentuk.com/?s=Srx8&po...ct&dgwt_wcas=1
However the best answer to this question is to simply visit the track or tracks you would be interested in racing at and have a look to see what is being used there. Tbh these days nearly all the cars are very good but support for each brand can vary across the country and from track to track!
With so few model shops around these days you’ll almost certainly be ordering parts etc online so look for something we enjoy at Serpent which is excellent service and often next day delivery on anything we need....
James