By Alex Lauer In partnership with Omaze Even supercar makers aren’t immune to salesman gimmicks. When the difference between one six-figure exotic and the next is a tenth of a second on the 0-60 stopwatch, you need a more enticing pitch, something the average Joe (well, millionaire Joe) can get excited about. Koenigsegg has its volcano fuel, De Tomaso is championing the no-screens movement and for the last few years McLaren has been eyeing the parking lot at the links. When McLaren unveiled its GT model in 2019, the British supercar maker said it was redefining the grand tourer. In essence, bu…