The TC5R isn't necessarily the latest and greatest, but it's designed specifically for running rubber tires. Since rubber tires have less consistent traction than foams, the 5R has a more flexible chassis and softer suspension -- softer springs and more flexible suspension parts.
All modern touring cars have a similar range of adjustments, and similar complexity. If you're new to TCs, pay attention to the instructions when you build the car. The "kit" setup will be very close to ideal for most conditions. This thread gives you thousands of opinions about what is the best way to go about making the TC5 faster/better. Make changes one at a time and make notes about the results.
Best advice I got when starting out was to make sure the loose nut behind the wheel is adjusted properly.