What isn't to like about the F1? McLaren's anal-retentive ethos shows through in every aspect of the car, from the gold-plated (for heat dispersion) BMW V12, to the groundbreaking active aerodynamic effects. When it debuted, it was the fastest and most expensive car in the world, but the goal was to simply be the "best road car in the world." We still can't think of anything we'd rather have.
Also, who doesn't love the seating arrangement? One central driver's seat with two passenger seats set back and to the sides is brilliant. We want to see more cars like that, and we might just get something similar with the upcoming P1.