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However, the cars do have power steering (stock cars anyway) and the heaviest, that I know of, are stock cars which are 3500 lbs.
Ned Jarret drove one of the winning Yates Ford cars Dale drove back in 98 or 99 and Dale drove the 427 powered car Ned won with from either 65 or 66. Dale came in after just a handful of laps complaining about his shoulders hurting from how hard to drive that old Galaxy was. Ned on the other hand was cutting competitive lap times in Dales race car and wouldn't come in until the car was out of fuel. He told Dale, if the cars he drove were that easy to steer in his day, He'd still be racing!!!!