Acdelco Professional 41-803 Spark Plug-platinum Spark Plug Package on 2040-parts.com

Revenge Design GTM-R is revealed at the Detroit auto show

File this under the eye-candy department at the Detroit Auto Show. An Indiana company named Revenge Designs Inc. unveiled at $145,000 supercar Monday that's fitted with a slew of General Motors parts, including the vaunted LS7 V8 rated at 505 hp and 470 lb-ft of torque.

Jaguar XKR-S GT revealed (+ video)

Jaguar has pulled a surprise with the reveal of a more focused, and expensive, XKR ahead of the New York Auto Show – the Jaguar XKR-S GT. The XKR-S GT doesn’t get extra power – the XKR-S already has 542bhp – but it does get lots of tweaks to make it more able to use the performance it has. That means a new bonnet with more vents to improve cooling, a new carbon fibre front splitter, new rear diffuser, an aluminium undertray at the front, a whopping great spoiler at the back and bits of carbon fibre floating around.

Porsche introduces Panamera Platinum Edition

The Porsche Panamera is already one of the top executive sedans on the road today. But in case there's any doubt, the company has added a Platinum trim to the lineup, moving the vehicle even further upscale. It will be offered for both rear- or all-wheel drive versions.