Buy a very basic RTR, you may need to upgrade the RC, engine, servos, etc......... finally the car have to be trashed because not competitive.
Buy a popular racing car, you may spend more at the first time, but no upgrade problem.
No cars are specific to "old hands" or newbie...... I have a friend, he's a newbie too (around 3 months experiece)...... since he followed my instruction, he always have trophies in local races now (he goes to track every 3 days).