A 1999 two-door Chevrolet Tahoe has a curb weight of 4,500 pounds. The two-wheel-drive 2015 Chevrolet Tahoe has a curb weight of 5,466 pounds, and a four-wheel-drive model has a curb weight of 5,683 pounds, so the four-door model is 966 to 1,183 pounds heavier than the two-door model.
The two-door models were discontinued after the second-generation Tahoe began production in 2000. The first-generation four-door Tahoe model weighed in at 5,500 pounds, so it was 1,000 pounds heavier than the two-door model.
Both the first- and fourth-generation models come equipped with similar V8 engines, but the first generation has a 5.7-liter engine, while the fourth generation has a 5.3-liter engine. The fourth generation also has an optional eight-speed transmission, while the first generation only came with a four- or five-speed transmission, although the first-generation model also has an optional five-speed manual transmission. The fourth-generation models are significantly longer, taller and wider than the first-generation two-door models; the former have a length of 203.9 inches, a width of 80.5 inches and a height of 74.4 inches, while the latter have a length of 188 inches, a width of 77 inches and a height of 72 inches. Both the first- and fourth-generation vehicles come equipped with either rear-wheel drive or all-wheel drive and have a front engine.