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Concept Car of the Week: Lancia Bertone Sibilo (1978)

The second half of the ‘70s saw automotive design fall into an era of uninspired and uninspiring economic cars finished with cheap plastic add-ons and stuffed with beige itchy fabrics. Working from the little Bertone studio in Turin, it seems Marcello Gandini didn't get the memo and carried on drawing futuristic wedgey supercars. With the Sibilo, he pushed his signature angular style to a new level of modernity.

Porsche 918 Spyder (2010) at Geneva motor show

Porsche has shown off this stunning new 918 Spyder concept car on the eve of the 2010 Geneva motor show. It’s a mid-engined two-seater in the mould of the Porsche Carrera GT – a landmark supercar to showcase Porsche’s technical nous. Michael Macht, president and chief executive officer of Porsche, unveiled the 918 Spyder in Switzerland, and intriguingly proclaimed that Porsche has never shown a concept car that it hasn’t put into production… Porsche’s official press release was light on the details, but after the unveil Porsche’s R&D chief Wolfgang Durheimer talked CAR around the 918 Spyder and revealed some eye-popping figures for this part-electric hybrid supercar which weighs in at 'less than 1490kg'.

£2m McLaren P1 GTR for Pebble Beach

McLaren McLaren will show its new P1 GTR – pictured here for the first time in an official teaser shot above – at the Pebble Beach Concours d’Elegance car show next month. The P1 GTR will feature a number of circuit-biased modifications – including a 1,000hp engine – and will cost £1.98 million. McLaren P1 GTR: track-focused modifications The GTR is based on McLaren’s P1 hybrid hypercar, itself designed not to be the fastest, but the most focused, involving and advanced driver’s car there is.