Welcome! Try
www.towerhobbies.com to get an idea of what RC's are available to you. If you dig through the electric section, you'll find that there are some quality electric buggies available and I'm sure you will find that they would all make a great first car. You'll need to decide if you want to build a kit (you have to build it) or buy an RTR (Ready To Run) but either way, there are plenty of choices out there. Good luck!