GMC Terrain (2018) vs. Toyota Sienna (2006) Specs

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2018 GMC Terrain and 2006 Toyota Sienna Specifications

Model Year	2018	2006
Model	GMC Terrain	Toyota Sienna
Engine
Transmission
Drivetrain
Body	4dr SUV	4dr Minivan, ext.
			Difference
Wheelbase	107.3 in	119.3 in	-12 in
Length	182.3 in	200.0 in	-17.7 in
Width	72.4 in	77.4 in	-5 in
Height	65.4 in	68.9 in	-3.5 in
Curb Weight	3449 lb.	4140 lb.	-691 lb.
Fuel Capacity	14.9 gal.	20.0 gal.	-5.1 gal.
Headroom, Row 1	40.0 in	42.0 in	-2 in
Shoulder Room, Row 1	57.2 in	63.8 in	-6.6 in
Hip Room, Row 1	54.4 in	58.4 in	-4 in
Legroom, Row 1	40.9 in	42.9 in	-2 in
Headroom, Row 2	38.5 in	40.2 in	-1.7 in
Shoulder Room, Row 2	55.6 in	64.9 in	-9.3 in
Hip Room, Row 2	51.8 in	67.5 in	-15.7 in
Legroom, Row 2	39.7 in	39.6 in	0.1 in
Headroom, Row 3	0.0 in	38.1 in	-38.1 in
Shoulder Room, Row 3	0.0 in	61.1 in	-61.1 in
Hip Room, Row 3	0.0 in	51.8 in	-51.8 in
Legroom, Row 3	0.0 in	39.5 in	-39.5 in
Total Legroom	80.6 in (over 2 rows)	122 in (over 3 rows)	-41.4 in
Cargo Volume, Minimum	29.6 ft³	43.6 ft³	-14 ft³
Cargo Volume, Behind R2	29.6	94.5 ft³	-64.9
Cargo Volume, Maximum	63.3 ft³	148.9 ft³	-85.6 ft³

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TrueDelta Reviews the Seat Room and Comfort of the 2018 GMC Terrain

2018 GMC Terrain Seat Room and Comfort: Pros
Year	Comment
2018	The first-generation GMC Terrain took advantage of a long, 112.5-inch wheelbase to offer exceptional rear legroom--nearly 40 inches of it. On paper, the 2018 Terrain has only a half-inch less combined legroom despite a wheelbase shrink of 5.2 inches (to better align the vehicle with competitors and open up space for the downsized Acadia). In reality, rear legroom seems ample but no longer outstanding. The rear seats in the Honda CR-V and Toyota RAV4 are similarly roomy. But the Terrain does pull ahead when evaluating rear seat comfort. Its high-mounted rear seat cushion provides better leg support than others. The Compass's rear seat is lower and firmer. The Terrain's rear seat can even recline a little. Based on their specs, the Jeep is nearly as roomy inside as the GMC. Headroom, shoulder room, and combined legroom specs all differ by less than an inch. In reality, the Jeep's interior feels significantly narrower. And the Jeep Cherokee? All of its interior specs are also within an inch of the Terrain's, though often in the other direction. Why does Jeep offer two crossovers so close in size? This isn't clear. In terms of specs, they differ most in combined legroom and cargo volume. The Cherokee has 1.3 inches more of the former--good to have, but hardly justification for an additional model--and about ten percent LESS of the latter. How can the larger Jeep have less cargo volume? I suspect that the Compass was measured more creatively, and cannot actually hold as much cargo. Based on their specs--and I always take cargo volume specs with more than a little salt--the new Terrain can swallow a few more cubic feet of cargo than the Compass (63.3 vs. 59.8) but falls well short of the RAV4 (70.6 in hybrid form, 73.4 otherwise). A Honda CR-V can fit a couple more cubes than the RAV4. The GMC Terrain and the Jeeps compensate for not having the most spacious cargo areas with front passenger seats that fold forward. If your cargo is long but not wide, one of these is the way to go. Though closely related to the GMC, the Chevrolet Equinox does not offer this feature. see full GMC Terrain review

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What Our Members Are Saying about the Seat Room and Comfort of the 2006 Toyota Sienna

2006 Toyota Sienna Seat Room and Comfort: Pros
Year	Body/Powertrain	Comment
2006	4dr Minivan, ext. 215-horsepower 3.3L V6 5-speed automatic AWD	the kids have enough foom they leave each other alone see full Toyota Sienna review
2006	4dr Minivan, ext. 215-horsepower 3.3L V6 5-speed automatic AWD	I can adjust the seat exactly how I want it see full Toyota Sienna review
2006	4dr Minivan, ext. 215-horsepower 3.3L V6 5-speed automatic FWD	Two middle seats are bucket seats and VERY comfortable. Leg room in 3rd row is a little limited. see full Toyota Sienna review
2006	4dr Minivan, ext. 215-horsepower 3.3L V6 5-speed automatic FWD	Sits high so short people have a comfortable good view of the road. see full Toyota Sienna review
2006	4dr Minivan, ext. 215-horsepower 3.3L V6 5-speed automatic FWD	The 3rd row seats have enough leg room and the seats themselves are well built. That said, I have not tried the 3rd row seats of close competitors like the Odyssey see full Toyota Sienna review
2006	4dr Minivan, ext. 215-horsepower 3.3L V6 5-speed automatic AWD	Lots of room even for adults see full Toyota Sienna review
2006	4dr Minivan, ext. 215-horsepower 3.3L V6 5-speed automatic AWD	Lots of room to move. see full Toyota Sienna review
2005	4dr Minivan, ext. 230-horsepower 3.3L V6 5-speed automatic FWD	3 tall teeange boys and they love it cack there. So comfortable! see full Toyota Sienna review
2005	4dr Minivan, ext. 230-horsepower 3.3L V6 5-speed automatic FWD	The Sienna is an excellent family vehicle if interior space and overall capability are your priorities. It is comfortable for long family drives and you NEVER run out of space in this car. see full Toyota Sienna review

2006 Toyota Sienna Seat Room and Comfort: Cons
Year	Body/Powertrain	Comment
2006	4dr Minivan, ext. 215-horsepower 3.3L V6 5-speed automatic FWD	I have the CE which does not have adjustable lumbar support or 8-way adjustments. The seat has a fixed height, which is a bit too high for me. Also the seat is a bit too deep. see full Toyota Sienna review
2006	4dr Minivan, ext. 215-horsepower 3.3L V6 5-speed automatic FWD	Seat cushion has an uncomfortable contour at rear of seat and the armrests are uncomfortable. see full Toyota Sienna review
2006	4dr Minivan, ext. 215-horsepower 3.3L V6 5-speed automatic FWD	At $35,000 I think it could be much better. Hurts more than my Tacoma 4X4 after a long drive. see full Toyota Sienna review

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See TrueDelta's information for all GMC models.