Winner: Ford Super Duty F-450
Runner-Up: Chevrolet Silverado 3500HD LTZ/GMC Sierra Denali 3500HD

These are the big daddies of the passenger-truck world: They can tow the equivalent of 10 cars at once and have enough payload capacity to carry the equivalent of a Ram 1500. Cost is less of a concern here, so we looked at the top levels for the trucks from each of the three manufacturers: Silverado HD LTZ, Sierra Denali HD, Ford F-450 King Ranch, and Ram HD 3500 Laramie. The King Ranch is the best combo of luxury interior and capability, with a rugged, attractive cabin, 24,400-pound towing capacity, and a near-5000-pound payload. For less cost, there's the Lariat model.

TopLine Power Puller, 4WD crew cab diesel dualie
Vehicle Chevrolet Silverado 3500HD LTZ/ GMC Sierra Denali 3500HD Ford F-450 King Ranch Super Duty Ram Crew Cab Laramie HD 3500
Price incl diesel $46,525/$48,712 $63,835 $52,240
Wheelbase 167.7 in 172.4 in 168.9 in
Engine 6.6L OHV 32-valve TD V-8 6.7L OHV 32-valve TD V-8 6.7L OHV 24-valve intercooled TD I-6
Transmission 6-speed auto 6-speed auto 6-speed manual (6-speed auto $1575)
Power @ rpm, SAE 397 hp @ 3000 rpm 400 hp @ 2800 rpm 350 hp @ 3000 rpm
Torque @ rpm, SAE 765 lb-ft @ 1600 rpm 800 lb-ft @ 1600 rpm 800 lb-ft @ 1500 rpm
Airbags Front Front Front, f/r curt
Brakes Disc/disc, ABS Disc/disc, ABS Disc/disc, ABS
Tires 235/80R17 225/70R19.5 235/80R17
Fuel cap 36.0 gal 37.5 gal 34.0 gal
Seating cap 6 6 6
Curb weight 7900 lb 8150 lb 7850 lb
GVWR 13,000 lb 13,050 lb 12,200 lb
Payload 5100 lb 4900 lb 4350 lb
Max towing cap (fifth wheel) 21,100 lb 24,400 lb 16,700 lb