Published: Wed, December 13, 2017
Medical | By Garry George

McLaren's 'most extreme' road auto costs $1 million

McLaren's 'most extreme' road auto costs $1 million

The 720S-derived Monocage III carbon-fiber chassis and bespoke carbon-fiber body gives the Senna a 2,641-lbs (1,198kg) dry weight, making it the lightest McLaren road auto since the almighty-F1 and giving it a power-to-weight ratio of 679 hp-per-ton.

The car's extreme aerodynamics take their cues from the 720S, but are shaved of any unnecessary elements to reduce weight. "Day-to-day practicality also goes onto the back burner", says the magazine.

But McLaren actually kept one vehicle back from allocation, and it went under the hammer at their Winter Ball in London this weekend. A new roll-over structure behind the driver leaves room, according to Palmer, for only "two helmets, two driving suits and possibly a packet of sandwiches". In addition, Ayrton Senna actually worked for a period of five years with McLaren. The Senna also features engine technology found in other McLaren road cars such as dry-sump lubrication, twin scroll turbochargers and a flat-plane crankshaft.

"It provides the purest connection between driver and vehicle", the company said in a news release.

The long-awaited and recently-teasedMcLaren P15 hypercar has finally been revealed, but a little sooner than McLaren expected. The interior is stark and spartan: there's no room for interior storage, the start button is above the driver's head like a jet fighter, and exposed struts for the car's dihedral doors-similar to the F1's doors-open and close to offer a view of the car's extreme aerodynamic accoutrements. An exoticlooking four-outlet "slash-cut" exhaust is carefully positioned on the car's sloping rear deck, below the rear wing but above the diffuser to cause minimum interference. For a while, McLaren even considered leaving out the passenger's seat as a weight-saving measure but decided many owners would prefer to drive to the track with a passenger.

The Senna rides on a race-derived double-wishbone suspension system that features hydraulically interconnected adaptive dampers and a hydraulic replacement for anti-roll bars. The entire set-up is governed by an electronic gizmo called RaceActive Chassis Control II (RCC II) that incorporates an automatic stiffness control called K-damper.

The 1,198kg beauty features a bespoke carbon fibre body as the company's lightest road auto yet - a good start then. A Race mode can be selected via the overhead panel.

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