99 Suzuki Gsxr750 Gsxr 750 Engine Top End Cylinder Head on 2040-parts.com

Mercedes E 63 AMG S: UK price from £83,740

The E63 AMG S is the extreme version of what is already an extreme car in the E63, with a power boost that takes it from 549bhp to 577bhp – and throws in an extra 60lb/ft of torque for good measure too – and promises real extreme performance. The problem is, getting that power down to the road. In left hand drive markets that’s solved by simply offering the Mercedes 4WD option – 4MATIC – which does a much better job of transferring power to the road than the regular RWD layout.

Hopped-up Infiniti Q50 Eau Rogue set for Detroit auto show

Infiniti undoubtedly has a prestigious reputation when it comes to the world of Formula One racing, thanks to its partnership with Red Bull Racing and Formula One's baby-faced prodigy, Sebastian Vettel. So it's not surprising that its next concept will take inspiration from the F1 speed machines. Infiniti plans to debut the Q50 Eau Rogue concept at the Detroit auto show in January.

SRT Viper production halted amid slow sales

Chrysler has made the decision to suspend production of the SRT Viper for a least two months, citing slow sales. The move is expected to result in layoffs of 91 hourly workers at Chrysler's Conner Avenue Assembly plant in Detroit. Back in October of 2013, Chrysler cut Viper production by a third, citing slow sales and growing inventories.