An over-the-top attorney and his way-over-the-top Lamborghini Aventador challenge three sleeper cars that are anything but factory original.

Three sleeper cars -- including an '84 Oldsmobile that once housed a family of cats -- try to pull off an upset against a 2016 Ferrari 488 GTB.

A controversial burnout leads to an explosive confrontation. Cars include a 2013 McLaren MP4, a '94 Sonoma, an '84 Grand National and a '78 Chevy van.

A '27 Dodge pickup, a '64 Chevy pickup and a 2014 Honda Odyssey -- all heavily modified -- take on a 2006 Ford GT supercar.

A 2016 Lamborghini Huracán risks its rep against tricked-out sleepers, including a '46 Plymouth coupe, an '87 Monte Carlo SS and a '71 Ford Pinto.

A Batmobile-esque Lamborghini Aventador SV takes on a ’72 Mazda RX-2 with a rotary engine, a ’72 Datsun 1200 electric and a 2005 Dodge Ram 3500 diesel.

The brash owner of a 2016 Dodge Viper ACR-E takes on a trio of underdogs: a '92 Chevy S10, an '87 Ford Thunderbird and a '79 Cadillac Coupe de Ville.

The supercars and sleepers face off for a winner-take-all drag race at El Mirage dry lake bed in Southern California.

The alpha owner of a 2018 Lamborghini Huracán races three very hungry underdogs -- a '72 Caprice, a '92 Eagle Talon and a '92 Civic.

An '80 Oldsmobile station wagon, a '95 Ford Taurus, an '84 Oldsmobile Cutlass and a 2018 McLaren 720S go pedal to the metal for a photo finish.

The owner of a 2015 Ferrari 458 Speciale Aperta puts his rep on the line while racing an '89 Mustang, an '86 Buick Regal and a '73 Chevy Vega wagon.

A '74 Mini Cooper, a 2005 Pontiac GTO and a '95 Nissan 240SX -- all heavily altered -- redline it against a 2016 McLaren 675LT.

Is this Tesla's time to shine? The electric speedster takes on a '90 Nissan 300ZX, an '89 Ford Mustang and a '77 Toyota pickup.

What do the drivers of a '66 Bel Air, a '98 Civic and a 2001 Mustang have in common? Simple -- a burning desire to blow the doors off a McLaren 650S.

Six finalists travel to California, each confident that they'll return home a champion. But at the end of the day, there can only be one.