This week’s Autocar is an extra large special issue. With the Geneva motor show just a week away now, new car reveals are coming thick and fast but few can steal the show from the magazine's cover star, the new McLaren P1.

As well as the McLaren P1, which is shown in production guise for the first time and is capable of jaw-dropping performance, the news section stars the one-off Aston Martin Rapide Shooting Brake made by Bertone, the return of the Jeep Cherokee, full details of VW’s radical new 314mpg XL1 and the first look at Mercedes’ new S-class coupe. Greg Kable also offers the first impressions of the two models in BMW’s new i sub-brand, the i3 and i8.

The features section is dedicated to a 17-page celebration of the iconic Porsche 911. The special has been compiled by Autocar editor-at-large Steve Sutcliffe, and includes Steve Cropley’s drive of every model, Peter Robinson’s thoughts on when he met the car’s creator ‘Butzi’ Porsche, reminisces from Sutcliffe, Cropley, Colin Goodwin and Andrew Frankel on owning 911s and used buying guides to all the key cars.

Britain’s cheapest car, the £5995 Dacia Sandero, undergoes its toughest challenge yet, as it is subjected to the full eight-page road test, while we also drive the new Toyota Rav4, the updated Lamborghini Gallardo, and the latest Vauxhall Zafira BiTurbo, Peugeot 508 hybrid, Audi Q5 and Fiat 500L. Meanwhile, our test fleet bids farewell to our Alpina D5 and our Range Rover Evoque undergoes a service.

The TVR Sagaris is the hero of our used car content, this week, emerging as a surprisingly tempting buy if you can track down the right car. Meanwhile James Ruppert ponders a range of used Protons and we pose the question as to whether you’d spend £32k on a new BMW M135i or a used Chevrolet Corvette C6 Z06.

Autocar magazine is available through all good newsagents, and available to download from Zinio and the Apple iTunes store.