The most exclusive supercars on Earth all essentially have one thing in common: An engine mounted directly behind the driver.

Hot rodding has always meant swapping an engine with a more powerful one. But now, people have taken to shedding the engine altogether.

Now associated with Porsche and Subaru, flat boxer engines were once a very popular engine type, with lineage going back over 100 years.

We're proud to host this 718 Cayman GT4, which may be the only new, unregistered example of its kind for sale in the United States.

Be they straight six, flat six, V8, or Honda’s Vtec engines, automotive enthusiasts love high-revving naturally aspirated power.