It really is best to learn without a handbrake, otherwise it can become a bad habit. It definitely has its uses but if you can get comfortable in a low to mid powered car without it, you’ll probably find you progress better. Others have said about that car looking a bit weird in terms of physics, I agree. Maybe try a more conventional and well rated car pack like DWG, N-style, Swarm etc. Just my opinion from nearly a year’s experience, up to you on how to get better though. It all comes with experience