'Car of Tomorrow' Gets Fuel System of Today.

WHEN the 2012 Nascar season roars to life in Florida next February, racecars in the Sprint Cup series will have undergone one of their biggest changes in decades. But the difference won't be visible to spectators in the stands or fans watching on TV. Starting with the cars in the premier Sprint Cup series, Nascar is turning its back on the venerable carburetor, a straightforward mechanical device that has fueled its engines since the competition began six decades ago. Instead, the Sprint Cup engines will be fed by electronic fuel injection. [ABSTRACT FROM PUBLISHER]