Back in 1964, the GTO was mopping the floors with… literally no one else since there was no rival to dispute its supremacy. But strong sales attracted attention, and Oldsmobile drew first blood ...

The car sports a super-rare lightweight feature on the rear end, and the renovation was completed with original and New Old Stock parts ...

A Swedish Audi fanatic seems to think so, too, and has gone to extreme lengths to transform a workaday Audi 90 into the IMSA GTO version of that car. Not wanting to go the stripe-and-bodykit route ...

From the unmistakable shrill howl of the four-rotor 1991 Mazda RX-7-001 GTO to the thundering Chevrolet V-8 growl of a 1985 Lola Corvette GTP, the winners of the inaugural Historic Sportscar Racing ...