2027 GMC Sierra vs 2027 Jeep Gladiator
The GMC Sierra wins clearly, 88.9 to 71.7, on fuel & range, performance. The Jeep Gladiator is ahead on safety.
2027 GMC Sierra
The 2027 GMC Sierra is sold in the U.S. as an electric, gas and diesel large pickup truck with 10 EPA-rated configurations. Its longest-range version, the Sierr…
2027 Jeep Gladiator
The 2027 Jeep Gladiator is sold in the U.S. as a gas large pickup truck. The most efficient version, the Gladiator 4WD, is EPA-rated at 19 mpg combined. NHTSA l…
2027 GMC Sierra
Clear winThe GMC Sierra wins clearly, 88.9 to 71.7, on fuel & range, performance. The Jeep Gladiator is ahead on safety.
| Category · weight | 2027 Jeep Gladiatoroverall 71.7 | 2027 GMC Sierraoverall 88.9 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pricenot compared | No data | No data | |||||||||
| Fuel & rangew 3 | 32.8 | 100 | |||||||||
EPA annual fuel cost and combined mpg / MPGe; EV range when both are electric. | |||||||||||
| Safetyw 4 | 100 | 75 | |||||||||
NHTSA 5-Star rating, WhichTrim Safety Signal (open recalls by severity), owner complaints, standard driver-assist features (from the press kit, or from what the manufacturer filed with NHTSA where there is none). Open park-outside / do-not-drive advisories cost 25 points. | |||||||||||
| Space & cargonot compared | No data | No data | |||||||||
| Performancew 2 | 73.3 | 100 | |||||||||
Horsepower, torque and horsepower per ton. | |||||||||||
| Tech & comfortnot compared | No data | No data | |||||||||
| Warrantynot compared | No data | No data | |||||||||
| Overall | 71.7 | 88.9 | |||||||||
Trim vs trim · 3 of 7 categories compared
Jeep Gladiator: base trim Sport 4WD · GMC Sierra: base trim Pro 2WD. Pick a trim in the tool to compare any other trim.
Where the gap is
the biggest differences, from the scorecard's own numbersWhere the 2027 GMC Sierra wins
- It is rated 66 combined against 19 (EPA mpg or MPGe).
- It costs $2,150 a year less to fuel on the EPA's estimate ($1,150 against $3,300).
- It turns out 455 lb-ft of torque against 260.
Where the 2027 Jeep Gladiator answers
- It lists 3 standard driver-assist features against 0.
What they share
- A Safety Signal of 100.
Ranked by how far apart the two score on each measure, so a price gap and a horsepower gap are compared on the same scale. Every figure is on this page.
Specifications side by side
47 specs · manufacturer press kits| Spec | Jeep GladiatorSport 4WD | GMC SierraPro 2WD |
|---|---|---|
| Pricing | ||
| Base MSRP (excludes destination) | — | $51,295 |
| Engine Basics | ||
| Aspiration | naturally aspirated | twin turbo |
| Cylinder count | 6 | 4 |
| Engine displacement | 3,604 cc | 2,700 cc |
| Engine type (full description) | 3.6-liter Pentastar V-6, 60-degree, V-type, liquid-cooled | 2.7L TurboMax |
| Fuel injection system | Sequential, multiport, electronic, returnless | gdi mpi |
| Valve configuration | DOHC | DOHC |
| Engine Output | ||
| Horsepower | 285 hp | 350 hp |
| Torque | 260 lb-ft | 455 lb-ft |
| Fuel Economy | ||
| MPG (city) | 17 mpg | — |
| MPG (combined) | 19 mpg | — |
| MPG (highway) | 22 mpg | — |
| Transmission | ||
| Final drive ratio | 3.73 | 3.42 |
| Transmission speeds | 8 | 10 |
| Transmission type | automatic | automatic |
| Dimensions Exterior | ||
| Ground clearance | 10 in | — |
| Overall height | 75 in | — |
| Overall length | 218 in | — |
| Overall width | 73.8 in | — |
| Wheelbase | 137 in | — |
| Cargo | ||
| Cargo volume behind 2nd row | 35.5 cu-ft | — |
| Total interior volume | 103 cu-ft | — |
| Seating | ||
| Passenger seating capacity | 5 | — |
| Headroom | ||
| Front headroom | 42.8 in | — |
| Third-row headroom | 42.8 in | — |
| Legroom | ||
| Front legroom | 41.2 in | — |
| Third-row legroom | 38.3 in | — |
| Weights | ||
| Curb weight (maximum) | 4,695 lbs | — |
| Curb weight (minimum) | 4,695 lbs | — |
| Payload capacity | 1,025 lbs | — |
| Suspension | ||
| Front suspension type | Solid axle, link coil, leading arms, track bar, coil springs, stabilizer bar | Independent coil over shock with twin tube shock absorbers including frequency dependent damping |
| Rear suspension type | Solid axle, link coil, trailing arms, track bar, coil springs, stabilizer bar | Solid Axle Hotchkiss with two stage 1+1 steel leaf springs or progressive rate composite mono-leaf springs; splayed twin tube shock absorbers including frequency dependent damping |
| Steering | ||
| Steering type | Electro-hydraulic power | Electric power-assisted rack and pinion |
| Turning radius (curb-to-curb) | 44.5 ft | — |
| Brakes | ||
| Front brake diameter | 330 mm | 343 mm |
| Front brake type | vented rotor, twin-piston floating caliper | 4 x 51mm fixed cast iron |
| Parking brake type | — | Electric |
| Rear brake diameter | 345 mm | 345 mm |
| Rear brake type | vented rotor, single-piston floating caliper | 1 x 51mm sliding cast iron with integrated electric park brake |
| Wheels | ||
| Wheel diameter | 17 in | 17 in |
| Wheel material | steel | steel |
| Wheel width | 7.5 in | 8 in |
| Tires | ||
| Tire size | 245/75R17 | 255/70R17 all-season |
| Fuel System | ||
| Fuel tank capacity | 22 gal | 28 gal |
| Minimum recommended octane | 87 | — |
| Shoulder Room | ||
| Front shoulder room | 55.7 in | — |
| Third-row shoulder room | 55.7 in | — |
Green marks the better value where the direction is unambiguous (more room, more power, lower price). Blank rows are specs the press kit does not publish.
Equipment, feature by feature
17 features · differences first, then sharedSafety3 differ · 3 listed
| Feature | Jeep GladiatorSport 4WD | GMC SierraPro 2WD |
|---|---|---|
| All-speed Traction Control | std | — |
| Electronic Stability Control | std | — |
| Four-wheel Anti-lock Brakes | std | — |
Powertrain8 differ · 8 listed
| Feature | Jeep GladiatorSport 4WD | GMC SierraPro 2WD |
|---|---|---|
| 10-Speed Automatic Transmission | — | std |
| 2.7L TurboMax Engine (350 hp / 455 lb.-ft.) | — | std |
| 3.6-Liter Pentastar V-6 Engine | std | — |
| 850RE Automatic Eight-Speed Overdrive Transmission | std | — |
| Available 28-gallon fuel tank (Regular Cab) | — | std |
| Available 34-gallon fuel tank (Double Cab / Crew Cab) | — | std |
| NV241 Command-Trac (MP1622) Transfer Case | std | — |
| Rear Trac-Lok Anti-Spin Differential | std | — |
Chassis6 differ · 6 listed
| Feature | Jeep GladiatorSport 4WD | GMC SierraPro 2WD |
|---|---|---|
| Brake Rotor Size: Front 13.5in/343mm vented; Rear 13.6in/345mm vented | — | std |
| Electric power-assisted rack and pinion steering | — | std |
| Front brakes: 4 x 51mm fixed cast iron; Rear brakes: 1 x 51mm sliding cast iron with integrated electric park brake | — | std |
| Gas-Charged Monotube Shock Absorbers with Multi-Tuned Valve (MTV) Technology | std | — |
| Independent coil over shock front suspension with twin tube shock absorbers including frequency dependent damping | — | std |
| Solid Axle Hotchkiss rear suspension with two stage 1+1 steel leaf springs or progressive rate composite mono-leaf springs | — | std |
Highlighted rows are where the two differ. Wording is the manufacturer's own.
Safety record
NHTSA recalls, complaints, NCAPJeep Gladiator
Top recalls
No recalls on file.
GMC Sierra
Top recalls
No recalls on file.
Ownership
EPA, manufacturer warranty| Jeep GladiatorSport 4WD | GMC SierraPro 2WD | |
|---|---|---|
| Price | — (base trim) | $51,295 (base trim) |
| Price range across trims | — 5 trims | $51,295 – $87,895 10 trims |
| Powertrains | GAS | BEV, GAS, Diesel |
| EPA configuration compared | Gladiator 4WD | Sierra EV Ext Range (11kW Chgr) |
| Combined mpg / MPGe | 19 | 66 |
| EPA annual fuel cost | $3,300 | $1,150 |
| EV range | — | 396 mi |
| Basic warranty | — | 3 yr / 36,000 mi (make terms) |
| Powertrain warranty | — | 5 yr / 60,000 mi (make terms) |
| Roadside assistance | — | 5 yr |
Common questions
Source: EPA, NHTSA and manufacturer press kitsWhich is better, the 2027 Jeep Gladiator or the 2027 GMC Sierra?
The GMC Sierra wins clearly, 88.9 to 71.7, on fuel & range, performance. The Jeep Gladiator is ahead on safety. On WhichTrim's default weights the 2027 GMC Sierra scores 88.9 and the 2027 Jeep Gladiator 71.7. The weights are yours to change — move what you care about and the verdict recalculates on the page.
Which has the better safety record, the 2027 Jeep Gladiator or the 2027 GMC Sierra?
2027 Jeep Gladiator: no NHTSA rating yet, grade A, 0 recalls. 2027 GMC Sierra: no NHTSA rating yet, grade A, 0 recalls. Crash ratings come from NHTSA's own tests; the grade is WhichTrim's read of the recall record, and the two can disagree.
What are the biggest differences between the 2027 Jeep Gladiator and the 2027 GMC Sierra?
Where the 2027 GMC Sierra wins: it is rated 66 combined against 19 (EPA mpg or MPGe), costs $2,150 a year less to fuel on the EPA's estimate ($1,150 against $3,300), and turns out 455 lb-ft of torque against 260. Where the 2027 Jeep Gladiator answers: it lists 3 standard driver-assist features against 0. What they share: a Safety Signal of 100.