This F40 wears a period-correct LM kit and sports an aftermarket tune. It makes big power and lots of fire on the dyno.

On today's episode of Car Trek, AutoTempest challenged the guys to test their used exotic cars' power levels in a dyno test.

Matt Kurdock, managing director of engineering at IMSA working his ninth Rolex for the series, tap-danced around the S word ...

Mercedes-AMG Customer Racing boss Stefan Wendl is confident that the initial teething problems for its cars stemming from the introduction of torque sensors have been solved ahead of the Rolex 24.

Nelson Racing Engines have created some of the most powerful engines to power iconic cars, but which engines have the most ...

CarBahn calls its G82 M4 mods its Signature package, and it retails for $20,599. There are some more CarBahn options on this particular test car that add another $9,000 to the price, in addition to ...

Both cars make four-digit horsepower, five times the dyno peak of the 200-horsepower Yamaha, yet in a series of races the victor was only determined by launch grip on wet British asphalt.

John Lohone’s 1,169-hp all-aluminum Brodix big-block cut through Drag Week’s Pro Street NA class for the win. Here’s how he ...

While the late, modern-day Ford GT is an exceptional sports car that sells for huge prices at live auctions and online, any car collector out there will tell you the original GT40 is one of the most ...

Shelby Cobra is the only factory-built example equipped with quad two-barrel carburetion (Stage III) out of only five factory ...

Whitney Straight was just 21 when he ordered three Maserati 8CMs, but the New York-born racer already had a great eye for ...

The car is then fine tuned on the dyno for optimum performance. Time to carry out the upgrade is approximately one business day.