Driving position is important as well. This isn't the Saturday night cruise-in at Big Boys. You want to be able to reach the shifter, ignition, pedals, and any safety equipment with ease while fully belted in. Adjust the seatback for a clear view of the track too. Also, consider a helmet mandatory. Yeah, we know most tracks are fine without a helmet for the slower cars, but get in the habit of wearing a full Snell-approved helmet, you won't regret it if something bad happens. Current Snell ratings of SA2005 or higher are what most tracks require, but new SA2010-rated helmets are now becoming available.