Magnaflow 337254 Direct Fit California Catalytic Converter on 2040-parts.com

Concept Car of the Week: Mercedes-Benz C111, C111-II and C111-IID

In 1962, Mercedes-Benz launched a research program to investigate the development of the Wankel rotary engine and its potential both on the road and track. While the early mule wasn't a looker, the prototype's design continued to evolve until a public unveiling of the C111-I concept, designed by Bruno Sacco, at the 1969 Frankfurt motor show. The coupé may have looked like the systematic further development of the Sport Light models from the ‘50s with its gullwing doors, but it wasn't a design study for a new SL.

Mercedes’ AMG division unveils new twin-turbo V8

Those obsessed with torque bemoaned Mercedes’ high-revving 6.2-litre V8 when it was launched in 2005, but just as the world has come to accept the naturally aspirated engine, the company has now unveiled a new twin-turbo 5.5-litre V8. Up to 563bhp – which is the same as the SLS AMG – and 663lb ft, which is much more than the 479lb ft the modern-day Gullwing supercar manages. The engine is an all-new 5.5-litre V8 (5461cc to be exact) with direct-injection technology, an aluminium crankcase and two turbochargers.

New Range Rover Sport takes on Pikes Peak – and wins

The new Range Rover Sport takes on the Pikes Peak Hillclimb Pikes Peak is an unforgiving Hill Climb, spanning 12.42 miles and 156 corners, rising to 4,300 meters above sea level with oxygen levels at the top down to just 58 per cent of those at sea level, making it incredibly hard for both man and machinery to function. But despite the challenge, Land Rover has taken the new Range Rover Sport up Pikes Peak in a new record time for a production SUV, covering the 12.42 mile course of twists and turns in just 12m 35.61s at an average speed of 59.17mph. You won’t be surprised to learn that Land Rover choose to use the new RRS with the 5.0 litre Supercharged engine for the record run, but apart from fitting a roll cage and harness seatbelts, the Sport had no modifications at all.