I like both. F1 is cool but you can really get into nascar if you buy those radios and listen in to the pit conversations. I think nascar used to be a lot better when the cars were actually more like their stock counterparts. Example: Ford Fusion Nascar-= rear wheel drive normal camshaft(not overhead) carburated motor V8
Ford Fusion Stock
Front wheel drive
overhead camshaft
fuel injected motor
4 cylinder or v6