There is, essentially, nothing on the MP4-12C that isn't there for a reason, and a very good, performance-related one at that, aside from the necessary creature comfort items expected of any road car. A carbon monocoque tub bolts to aluminum subframes, the rear cradling the engine and transaxle so low it's almost mesmerizing. It's plain that the car was designed from the outset to be approach the ideal Form of a car as nearly as possible.
So, despite reports of the MP4-12C's "synthetic" or "video game-like" behavior--criticisms also often leveled at the Nissan GT-R, itself a fine track-day companion--I found the Spider to be not at all remote or interferent in its manners, but the opposite.
While my time with the car was limited to four short hours at the Monticello Motor Club in New York, I also noticed something surprising about the Spider: it's actually very comfortable to just drive around town--or in my case, around the support roads leading to various areas of the track.
This is due to one very clear and simple (in principle, if not in construction) set of components: the hydraulic dampers and virtual anti-roll bars.
Unlike most sports cars and even supercars, the McLaren 12C Spider has no torsion-rod arms linking opposite sides of the suspension together to aid in lateral roll stiffness (though there is a rear Z-bar for heave control). Instead, a hydraulic system dynamically adjusts damper and virtual spring rates per corner and laterally, controlling body roll efficiently, and without the harshness-adding effects such bars can produce. On top of that, the hydraulic suspension system allows the car to use much longer and softer coil springs than it would otherwise require, because those springs are essentially there only as a fail-safe for the hydraulic system; according to one McLaren engineer, they're about 25 percent as stiff as they'd be in a purely conventional setup.
You may wonder to yourself: why a convertible on track? Because, in this case, there's no apparent compromise to get the added benefit of available top-down cruising. In fact, with the hard top up, the only shortfall is in headroom; the car even looks like a coupe. On track, if it's even fractionally less rigid than the coupe, it's beyond the powers of mere mortals to perceive, even on the standard and sticky Pirelli P Zero tires.
The result of this minimalist but highly technical design? Incredible compliance over bumps and road irregularities, yet unyielding firmness and incredibly flat cornering, without either end of the spectrum seeming to be a compromise.
For the driver that can approach their own limits safely, the MP4-12C Spider is an almost limitless tool, and one that can bring similarly unlimited joy in crafting and refining the line around any given track. And for that reason, as well as its suitably attractive shape, comfortable cockpit, and tremendous sound, it's our new favorite supercar. Yes, there are more dramatic alternatives, and possibly even some that are faster around a given circuit. But as a complete package, the MP4-12C Spider combines true roadworthiness with true track suitability in a way few, if any, other cars can manage.