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

Porsche threatens to pull Boxster production from Magna

Porsche is considering canceling an existing contract with Magna to build the next-generation Boxster and Cayman in Austria starting in 2013 and may instead move production to Karmann in Germany. The move would be aimed at protecting Porsche's closely guarded engineering and production cost secrets for its upcoming entry-level roadster and coupe. Porsche insiders say plans established under former boss Wendelin Weideking to build the Boxster and the Cayman at Magna's Graz factory in Austria are now being heavily reviewed following the Canadian/Austrian company's bid to take control of financially embattled Opel from General Motors.

Mystery Mercedes 600 six-door Landaulet heads to auction

There are ambitious project cars, and then there is this: a 1971 Mercedes-Benz600 Six-Door Pullman Landaulet that'll be offered at RM Auctions' Retromobile sale in Paris on Feb. 5. One of just 26 built, this example was recently rescued from the state motor pool of an unnamed African country with the consignor unwilling to reveal the car's exact provenance.

Citroën Prototypes make British debut at Classic Motor Show

For fans of Citroëns and ultra-rare classic cars, the 2009 Classic Motor Show will mark a British first thanks to a joint effort by the various Citroën car clubs attending, in conjunction with Citroën UK. The Citroën Car Club, the 2CVGB club and the Traction Owners Club will be showing four models - three of which have not been seen before on British soil - to commemorate the 90th anniversary of the French marque. These amazing vehicles are being brought to the UK from Citroën's Conservatoire in Paris especially for the show.