MacPherson strut with direct-acting stabilizer bar; passive plus dampers
MacPherson strut with direct-acting stabilizer bar; passive plus dampers; Continuous Damping Control
Rear suspension type
Five-link independent; coil springs with stabilizer bar; passive plus dampers
Five-link independent; coil springs with stabilizer bar; passive plus dampers; Continuous Damping Control
Tire size
P255/55R20
P275/45R22
Wheel diameter
20 in
22 in
Standard here, not on the base trim: 22-inch aluminum wheels (Avenir), Continuous Damping Control (front and rear suspension), P275/45R22 all-season blackwall tires (Avenir)
Specifications
Source: manufacturer press kit
Cargo
Cargo volume behind 2nd row
57.1 cu-ft
Cargo volume behind 3rd row
22.9 cu-ft
Dimensions Exterior
Ground clearance
7.3 in
Overall height
71.0 in
Overall length
207.6 in
Overall width
79.6 in
Wheelbase
120.9 in
Engine Basics
Aspiration
twin turbo
Cylinder count
4
Engine displacement
2500 cc
Fuel injection system
SIDI (350 bar)
Engine type (full description)
2.5L Turbo DOHC SIDI with Variable Valve Timing (VVT)
Valve configuration
16 Valve OHV - VVT
Engine Output
Horsepower
328 hp
Torque
326 lb-ft
Fuel Economy
MPG (city)
20 mpg
MPG (combined)
22 mpg
MPG (highway)
25 mpg
Fuel System
Fuel tank capacity
19.4 gal
Headroom
Front headroom
42.6 in
Second-row headroom
40.0 in
Third-row headroom
38.3 in
Legroom
Front legroom
44.3 in
Second-row legroom
41.5 in
Third-row legroom
32.1 in
Shoulder Room
Front shoulder room
62.2 in
Second-row shoulder room
62.1 in
Third-row shoulder room
57.8 in
Steering
Steering type
Electric variable-effort power steering with Active Return Assist
Suspension
Front suspension type
MacPherson strut with direct-acting stabilizer bar; passive plus dampers; Continuous Damping Control
Rear suspension type
Five-link independent; coil springs with stabilizer bar; passive plus dampers; Continuous Damping Control
Tires
Tire size
P275/45R22
Transmission
Final drive ratio
3.5
Transmission speeds
8
Transmission type
automatic
Weights
Curb weight (minimum)
4537 lbs
Wheels
Wheel diameter
22 in
Wheel material
aluminum
Standard & optional equipment
Source: manufacturer press kit
Safety1 std · 0 opt
Four-wheel-disc variable brake system with power assist
Infotainment1 std · 0 opt
Technology Package now standard on all equipment groups
Continuous Damping Control (front and rear suspension)
Electric variable-effort power steering with Active Return Assist
Five-link independent rear suspension; coil springs with stabilizer bar; passive plus dampers
MacPherson strut front suspension with direct-acting stabilizer bar; passive plus dampers
Cargo1 std · 0 opt
Trailering Package (now standard on all equipment groups)
Ranked by what shoppers ask about first; standard equipment before options.
Transcribed from the manufacturer's official press kit for the 2026 Enclave. Confirm with the window sticker for a specific unit.
The cheapest ownership win
Insurers price the 2026 Enclave very differently, and the gap between the best and worst quote on the same car and driver is usually larger than any option you are weighing on this page.
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Common questions about the Avenir
Source: EPA, NHTSA and manufacturer press kits
What does the 2026 Buick Enclave Avenir add over the Preferred?
Against the Preferred, 3 features become standard that the Preferred does not and 5 published specifications differ. Both lists are on this page, taken from the manufacturer's own press material.