On August 12, 2010, Harding set a new land speed record for a vintage gas coupe with a speed of 97.177 mph driving a 1931 Ford Model A, named Lickity-Split, on the Bonneville Salt Flats.
On Monday, Tonya did a qualifying run, of 79.1 mph. On Tuesday, she did a second run, at 83.618 mph, establishing a record of 81.37 mph, from the two runs. She is the first person to drive a 1931 vintage gas coup on the Salt Flats, to establish a land speed record. Also, this is the first time that a vintage gas coup has competed at a SCTA-BNI sanctioned event.