A Friday boat run to a southern Illinois lake tests the 2027 Grand Wagoneer. Its 3.0L Hurricane twin-turbo inline-six supplies 420 hp and 468 lb-ft, shifting through an 8-speed automatic. With the Heavy-Duty Trailer-Tow Package, a standard-wheelbase 4x4 can tow as much as the Upland: up to 10,000 lb when properly equipped.

Snowy mornings in St. Clair County put the drive system to work. Seven trims come standard with 4x4 and Selec-Terrain traction management, while the Grand Wagoneer trim offers 4x2 or 4x4. For the Upland and tow-package 4x4s, Quadra-Drive II brings an electronic limited-slip rear differential plus a two-speed transfer case that provides 4x4 Low.

• Peak horsepower of 420 at 5,200 rpm
• 468 lb-ft of torque peaking at 3,500 rpm
• Fuel grade: 87-octane regular unleaded
• 4x2: 17/22/19 mpg, EPA-estimated
• Standard-wheelbase 4x4: 17/21/18 mpg, EPA-estimated
• Quadra-Lift air suspension standard on Overland and Summits

Uconnect 5 Nav brings SiriusXM 360L, Alexa Built-In and TomTom maps to a 12.0-inch touchscreen in the 2027 Grand Wagoneer, and wireless Apple CarPlay and Android Auto mirror phones onto it. That screen and its features come with every trim.

Screens differ by seat. The driver faces either a 10.25-inch digital cluster, standard from the Grand Wagoneer through the Upland, or a 12.3-inch cluster topped by an Augmented Head-Up Display on Overland and Summit models. In the Summit Reserve, whoever rides shotgun has a screen too: the 10.25-inch Front Passenger Interactive Display.

• Alpine 9-speaker audio on Grand Wagoneer through Upland
• McIntosh MX950, 19 speakers, on Overland through Summit Obsidian
• Summit Reserve: 1,375-watt McIntosh with a 12-inch subwoofer
• Rear-Seat Entertainment Group available on Limited, Overland and Summits
• Wireless charging pad and two second-row USB charging ports

Commutes toward Scott Air Force Base bring stop-and-go stretches, and that is where Active Driving Assist pays off. Standard on the 2027 Grand Wagoneer, the hands-on system handles lane centering while Adaptive Cruise Control with Stop and Go manages speed. Blind-Spot and Rear Cross-Path Detection, Active Lane Management and Pedestrian Emergency Braking come with every trim.

Standard Rain Brake Support earns its keep in Metro East spring storms, working alongside Advanced Brake Assist, automatic high-beam headlamps and the Emergency Vehicle Alert System, all standard too. Airbag coverage includes advanced multistage front airbags, side bags built into the front seats and side curtains for every row.

• 360 Surround-View Camera on Upland, Overland and Summits
• Parallel and perpendicular Park Assist from Overland up
• Trailer-aware Blind Spot Monitoring on Upland and tow-package 4x4s
• Automatic Electronic Brake-Hold on Summit models
• More than 170 standard and available safety and security features

Travel-team tournament weekends call for room in every row. Captain's chairs with power tilt/slide in the second row make the 2027 Grand Wagoneer a seven-seater from the factory. The Summit Reserve keeps that layout, the other seven trims offer an 8-passenger bench, and legroom reaches 42.7 inches in row two and 36.6 in row three.

With all seats up, a standard-wheelbase model holds 27.9 cubic feet of cargo; folding the third row opens 70.8, and folding the second too opens up to 116.7. In the Grand Wagoneer L, space behind the third row grows to 42.6 cubic feet. Upland, Overland and Summit models get a standard tri-pane panoramic sunroof.

• Heated, ventilated front seats and heated wheel standard
• Summit models: 20-way power front seats with massage
• Palermo leather-trimmed bucket seats on the Summit Reserve
• Power-folding third row standard in every Grand Wagoneer L
• 182 cu ft of passenger volume

Overall size depends on which of the two wheelbases you choose. In standard-wheelbase form, the 2027 Grand Wagoneer is 216.1 inches long, 83.6 inches wide at the body and 79.8 inches tall on a 123.0-inch wheelbase, while the Grand Wagoneer L stretches to 228.1 inches on a 130.0-inch wheelbase.

Wheel sizes split the lineup: 20-inch on the Grand Wagoneer, Limited, Limited Altitude and Upland, and 22-inch on the Overland and Summit versions. A black roof comes standard on Summit models, two-tone paint is available on Upland and Overland, and Limited Altitude and Summit Obsidian add Dark Neutral Gray grille trim with black exterior accents.

• Illuminated seven-slot grille with active grille shutters
• Power-deploying running boards on Overland and Summit models
• Foot-activated hands-free power liftgate on all eight trims
• New for 2027: Ember Pearl-Coat paint
• Upland: all-terrain tires and three skid plates