That different manufacturers support the sport does not make one stock car (that's what they're called by the way) better than another. It simply means they'll have some different body shapes (very slight differences) and different manufacturer decals on them. In NASCAR (the sport) the stock cars (Cup cars) are built to very rigid specifications that are meant to ensure the cars are very closely matched come race day. The only way competitors gain an advantage is in how they tune the cars (gearing, suspension, etc...), which must stay within strict rules which are verified before each race on every car in the race.
In summary, pick whatever car floats your boat. If you like red, they've got one. If you like green, well they have green ones too. Although, red does make them go faster as HN7 pointed out.
first is doable but you have to run every lap flawlessly and be right on the top 2 or 3 to even have a chance to draft pass them before the finish. 
