The 2012 F-150 pickup truck by Ford exists in no less than 10 trims, including an off-road SVT Raptor, the noted Harley Davidson trim unique to this model year, and the expected XL, STX, XLT, FX2, FX4, Lariat, King Ranch, and Platinum trims. Manufacturer's suggested retail price (MSRP) for these pickups ranges from $23,500 to $52,305, depending on the trim, and not including packages or extras. As is standard for F-150s, the 2012 features a choice of four engines. Three of the four engines fitted to these trucks are double overhead camshafts (DOHC): the 3.7L V6 with 302 horsepower; the 3.5L Ecoboost V6 turbocharged to 365 horsepower; and the 360 horse 5.0L V8, all of which feature aluminum blocks and heads. The 6.2L V8 features a single overhead camshaft valvetrain, cast iron block, and generates 411 horsepower. The 2012 F-150's base curb weight ranges from 4,685 lbs for the lightest standard cab up to 5,978 lbs for the peak weight 4x4 Supercrew cab. Maximum towing capability tops out at 11,300 lbs with payload package installed (9,800 lbs without the payload package), while the bed is capable of carrying up to 3,060 lbs for the longest, 145 inch wheelbase. The lowest fuel economy is found in the SVT Raptor, designed for off-road use chiefly, which offers 11/16 mpg city/highway. Among all other trims, the lowest fuel efficiency is 14/19 mpg city/highway and the highest efficiency stands at 17/23 mpg city/highway.