Cars continue expanding in scale and mass with each passing year. Studies from the European Federation for Transport and Environment indicate new models widen by roughly 0.4 inches every two years. Factors such as added safety components including airbags and crumple zones, plus shifts in average human stature after wartime, contribute to this growth trend.

Against this backdrop, World War II tanks like the M4 Sherman, once viewed as enormous, now seem relatively compact. Measuring 230 to 248 inches long, the Sherman served as the primary battle tank for U.S. forces and Western Allies. Yet several current cars and trucks surpass it, among them the Maybach 62, Mercedes-Maybach S600 Pullman, and heavy-duty trucks from Ram, Chevrolet, and Ford.

Rolls-Royce Phantom Extended: 235.5 inches

The standard Rolls-Royce Phantom already spans 227.2 inches. Its extended-wheelbase counterpart reaches about 236 inches, outpacing several early Sherman variants such as the M4A1 at 230 inches, M4A2 at 233 inches, and M4A3 at 233 inches. Though narrower at 79.4 inches and lower at 65.2 inches compared with the tank's 103-inch width, the Phantom Extended delivers unmatched luxury customization. Its V12 engine produces 544 horsepower and 738 pound-feet of torque, achieving 0-62 mph in 5.5 seconds and a 155 mph top speed. New examples start near $637,750, while earlier used models range from $120,000 to $154,300.

Maybach 62: 242.7 inches

The Maybach 62 earns its name from its 242.7-inch length, exceeding many Sherman models including the M4A4 and M4A6 at 239 inches. Its 78-inch width remains far slimmer than the tank's 103 inches. Compared with a standard fifth-generation S-Class measuring 206.5 inches long, the Maybach 62 stands notably larger at 62 inches tall. Used examples begin around $45,000, with the 62S chauffeur variant from $75,000. Production ran from 2002 to 2012.

1974 to 1976 Cadillac Fleetwood Seventy-Five: 252.2 inches

Cadillac perfected oversized luxury with the Fleetwood 75 series. The 1974-1976 models reached 252.2 inches, surpassing even the longest Sherman variants at 247-248 inches and exceeding other tenth-generation Fleetwoods. Powered by a 500-cubic-inch V8 making 190 horsepower and 360 pound-feet of torque, these land yachts remain drivable with practice. Earlier 1974 versions used a 472-cubic-inch V8 rated at 205 horsepower. Well-preserved examples today command prices near $53,000.

Mercedes-Maybach S600 Pullman: 255.6 inches

Favored by dignitaries, the Mercedes-Maybach S600 Pullman measures 255.6 inches, topping the largest Shermans by over seven inches. Introduced in 2015, it succeeded earlier long-wheelbase S-Class Pullmans like the 242.4-inch W220 model. Original pricing exceeded $566,000, with quick sell-outs. The 2018 S650 Pullman retained identical dimensions. Current used values start near $380,000.

Ram Heavy Duty: 260.8 inches

More accessible than ultra-luxury sedans, the Ram Heavy Duty crew cab with eight-foot bed stretches 260.8 inches, longer than any Sherman. Shorter configurations begin at 232 inches. Power comes from a 6.4-liter Hemi V8 yielding 405 horsepower or a 6.7-liter turbodiesel inline-six producing 430 horsepower and 1,075 pound-feet of torque. Maximum towing reaches 36,610 pounds. The 2026 2500 starts at $46,855 plus destination.

Ford F-Series Super Duty: 266.2 inches

The Ford Super Duty crew cab with eight-foot bed achieves 266.2 inches while offering up to 40,000 pounds of towing capacity and 8,000 pounds payload. Other cab-bed combinations range from 231.8 to 254.4 inches. The 2026 models begin at $45,975 plus destination fees.

Chevrolet Silverado HD and GMC Sierra HD: 266 to 267 inches

The Chevrolet Silverado HD crew cab long bed measures 266.06 inches and starts at $45,900 plus destination. It offers a 6.6-liter gas V8 or Duramax diesel with strong torque. The related GMC Sierra HD reaches 266.77 inches, with pricing from $47,000 plus fees. Both support substantial towing loads up to 36,000 pounds.