GMC extends Denali trim to 2011 Sierra 3500

More Denali. That's what GMC says heavy-duty truckers want, and that's what the truck maker aims to give them. GMC announced on Friday that the Denali trim will be added to the 2011 Sierra 3500 model in several configurations.

Metrocab Range Extender London Taxi looks a real contender (video)

Metrocab Range Extender London Taxi We’ve had lots of new competition for the traditional London Black Cab cropping up recently, with the Nissan NV200 Taxi and the Mercedes Vito Taxi heading the assault on the traditional black taxi market. Now we’re getting the Metrocab Range Extender Electric from Frazer Nash throwing its hat in to the ring as a contender for the market, and it does look to be a real contender. Looking familiar with styling that looks like a properly updated take on the traditional TX4 Black Cab, the Metrocab has been developed by Frazer Nash and Ecotive to be fully compliant with all the requirements of the London Public Carriage Office and offers a much more appealing option for cabbies and fares alike.

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.