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Callaway supercharges 2015 Chevrolet Tahoe and Suburban

The debut of a number of new vehicles from Chevrolet has not gone unnoticed by companies specializing in building go-faster versions of cars and trucks from the Bowtie brand, and the most the most recent vehicles to receive a boost in performance will be the 2015 Chevrolet Tahoe and the Chevrolet Suburban. Callaway Performance may be associated mostly with building supercharged versions of the Corvette, but they're also lent their tuning expertise to Chevrolet trucks, and they've already got some things in store for the brand's largest SUVs. Callaway has announced that they'll give the 5.3-liter EcoTec3 V8 found in both SUVs a supercharged boost, courtesy of an Eaton TVS Roots-style supercharger.

Infiniti Q50 Eau Rouge concept gets boosted at Geneva

The Infiniti Eau Rouge concept has received a boost in performance since the Detroit auto show. A 3.8-liter twin-turbocharged V6 mated with a seven-speed gearbox now sits underhood. That engine seems mighty familiar.

Mercedes S600 Pullman – 6 versions planned?

New Mercedes S600 Pullman rendered The Mercedes S600 Pullman – arriving in 2013/14 to replace the unloved Maybach – will come in a range of six versions. The demise of Maybach has finally been confirmed, with Mercedes-Benz deciding to concentrate its Rolls and Bentley bashing plans on the S-Class, with plans to add a range-topping Pullman model to the new S-Class when it arrives in 2013. We had thought it likely that Mercedes would offer just a proper halo S Class Pullman in the shape of an S600 Pullman with a thumping great V12 nestling up front.