Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

AC Mk VI: AC Cars return to the UK

Here's a blast from the past. AC has announced it's returning to the UK market and will exhibit the Mk VI version of its venerable roadster at the 2011 Geneva motor show. AC, a UK manufacturer that's 110-years-young in 2011 but with more regenerations than a Doctor Who convention, is establishing a new base at Brooklands.

Novitec Alfa Romeo 8C Spider adds boost for a sensuous 600 hp

Novitec has laid hands on the near-perfect Alfa Romeo 8C to create the 8C Spider Kompressor, a car the tuner claims is the “most powerful street-legal Alfa Romeo of all time.” Heady words, but they're nicely backed up by a supercharged version of the 4.7-liter Alfa V8 cranking out 600 hp and 434 lb-ft of torque. That's up from approximately 450 hp and 346 lb-ft on a stock Alfa Romeo 8C Competizione. Tweaks supporting the force-fed mill include a water-to-air intercooler, custom injectors and revised fuel and ignition mapping, plus a variable stainless-steel exhaust system.

Porsche 911 Carrera S Powerkit offers 424 bhp

Porsche is offering a Powerkit for the Carrera S with 424bhp and an Aerokit Cup bodykit for the faux GT3 look. The 2012 Porsche 911 Carrera has only been with us for five minutes but already Porsche are offering more power and some add-on aero bits for a bit of a faux GT3 experience for new 911 owners. On the power front, Porsche Exclusive is offering a Powerkit for the 911 Carrera S which ups its power to 430hp (424bhp) from the regular 400hp.