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Head-to-head

2027 GMC Sierra vs 2027 Rivian R1T

The Rivian R1T wins clearly, 89 to 82.8, on safety, performance, fuel & range. The GMC Sierra is ahead on price.

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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…

vs
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2027 Rivian R1T

The 2027 Rivian R1T is sold in the U.S. as an electric large pickup truck with 12 EPA-rated configurations. Its longest-range version, the R1T Premium Long Rang…

Verdict · default weights

2027 Rivian R1T

Clear win

The Rivian R1T wins clearly, 89 to 82.8, on safety, performance, fuel & range. The GMC Sierra is ahead on price.

Price 2027 GMC Sierra leads by 35.9
Safety 2027 Rivian R1T leads by 25
Performance 2027 Rivian R1T leads by 31.3
Category · weight2027 Rivian R1Toverall 892027 GMC Sierraoverall 82.8
Pricew 464.1100
Fuel & rangew 310079.5
Safetyw 410075
Space & cargonot comparedNo dataNo data
Performancew 210068.7
Tech & comfortnot comparedNo dataNo data
Warrantynot comparedNo dataNo data
Overall8982.8

Trim vs trim · 4 of 7 categories compared

Rivian R1T: base trim R1T Premium (Dual-Motor) AWD · GMC Sierra: base trim Pro 2WD. Pick a trim in the tool to compare any other trim.

Change what matters to you →Scores are 0–100 per category from the data on this page. The weights are yours to set.

Where the gap is

the biggest differences, from the scorecard's own numbers

Where the 2027 Rivian R1T wins

  • It lists 19 standard driver-assist features against 0.
  • It costs $300 a year less to fuel on the EPA's estimate ($850 against $1,150).
  • It is rated 87 combined against 66 (EPA mpg or MPGe).

Where the 2027 GMC Sierra answers

  • It starts $28,695 lower ($51,295 against $79,990 base MSRP).

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

35 specs · manufacturer press kits
SpecRivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
Pricing
Base MSRP (excludes destination)$79,990$51,295
Engine Basics
Aspiration—twin turbo
Cylinder count—4
Engine displacement—2,700 cc
Engine type (full description)Dual-Motor AWD (1 in front, 1 in back)2.7L TurboMax
Fuel injection system—gdi mpi
Valve configuration—DOHC
Engine Output
Horsepower533 hp350 hp
Torque610 lb-ft455 lb-ft
Fuel Economy
MPG (combined)85 mpg—
Transmission
Final drive ratio—3.42
Transmission speeds—10
Transmission typeDual-Motor AWDautomatic
Dimensions Exterior
Ground clearance14.6 in—
Overall height78.2 in—
Overall length217 in—
Overall width88.4 in—
Wheelbase136 in—
Cargo
Total interior volume59.9 cu-ft—
Seating
Passenger seating capacity5—
Weights
Payload capacity2,116 lbs—
Suspension
Front suspension typeIndependent air suspensionIndependent coil over shock with twin tube shock absorbers including frequency dependent damping
Rear suspension typeIndependent air suspensionSolid 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—Electric power-assisted rack and pinion
Brakes
Front brake diameter—343 mm
Front brake type—4 x 51mm fixed cast iron
Parking brake type—Electric
Rear brake diameter—345 mm
Rear brake type—1 x 51mm sliding cast iron with integrated electric park brake
Wheels
Wheel diameter20 in17 in
Wheel material—steel
Wheel width—8 in
Tires
Tire size—255/70R17 all-season
Fuel System
Fuel tank capacity—28 gal
Connected Services
Connected services brandConnect+—

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

111 features · differences first, then shared

Safety19 differ · 19 listed

FeatureRivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
Forward Collision Warning std—
Rear Cross-Traffic Warning std—
Lane Departure Warning std—
Lane Keeping Assist std—
12 ultrasonic surround sensors std—
12-camera surround view system std—
360 View std—
6 front-row and 2 side-curtain airbags std—

Infotainment13 differ · 13 listed

FeatureRivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
SOS emergency response std—
Wireless charging for up to 2 phones std—
12.3" driver display screen std—
15.6" infotainment screen std—
6 (USB-C charging ports) std—
6.8" digital rear screen std—
Connect+ (60-day trial included) std—
Hands-free Bluetooth interface std—

Convenience5 differ · 5 listed

FeatureRivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
4 (120V three-prong outlets) std—
E-latch door release std—
Garage door opener std—
Ignition-free drive std—
Power front trunk release std—

Climate2 differ · 2 listed

FeatureRivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
Dual zone automatic climate control std—
Pre-entry climate control std—

Seating4 differ · 4 listed

FeatureRivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
Heated and ventilated front seats with memory std—
Heated and ventilated front seats with memory std—
5 seats (Capacity) std—
8-way power driver and passenger lumbar adjustment with memory settings std—

Interior7 differ · 7 listed

FeatureRivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
Heated steering wheel std—
Power tilt and telescoping steering column std—
Illuminated door sills std—
Integrated door flashlight std—
Interior: Black Mountain; Ocean Coast (Premium) / Black Mountain Signature; Slate Sky Signature (Performance, Quad) std—
Knitted textile headliner / Soft-touch sueded textile headliner std—
LED ambient lighting std—

Exterior25 differ · 25 listed

FeatureRivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
135.8 in (Wheelbase) std—
20" All-Terrain Wheels, Full-sized Spare Tire, Reinforced Underbody Shield; 20" All-Terrain Dark (All-Terrain Package)opt—
217.1 in (Length) std—
72.7 in (Min height) std—
78.2 in (Max height) std—
82.0 in (Width (with mirrors folded)) std—
88.4 in (Width (with mirrors)) std—
Darkout Packageopt—

Powertrain17 differ · 17 listed

FeatureRivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
10-Speed Automatic Transmission— std
2.7L TurboMax Engine (350 hp / 455 lb.-ft.)— std
325 g CO2e/mi (Life cycle carbon footprint) / 366 g CO2e/mi / 365 g CO2e/mi std—
329 mi (EPA est.) (Large battery) / 371 mi (EPA est.) (Max battery) / 374 mi (EPA est.) (Max battery) std—
4.5 sec (0–60 mph) / 2.9 sec (0–60 mph) / 2.5 sec (0–60 mph) std—
533 hp (Horsepower) / 850 hp (Horsepower) / 1,025 hp (Horsepower) std—
610 lb-ft (Torque) / 1,103 lb-ft (Torque) / 1,198 lb-ft (Torque) std—
85 MPGe (EPA efficiency (22" wheels/tires)) / 76 MPGe / 76 MPGe std—

Chassis10 differ · 10 listed

FeatureRivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
14.6 in (Max ground clearance) std—
29.9° (Max departure angle) std—
35.7° (Max approach angle) std—
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
Independent air suspension with 4 ride heights / Independent air suspension with 5 ride heights std—
Independent coil over shock front suspension with twin tube shock absorbers including frequency dependent damping— std

Cargo9 differ · 9 listed

FeatureRivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
Bumper-matched trailer hitch std—
11.7 cu ft (Gear Tunnel volume) std—
2,116 lb (Payload) / 1,702 lb (Payload) / 1,669 lb (Payload) std—
29.2 cu ft (Cargo bed storage volume) std—
54.2" x 51.1" x 18.3" (Cargo bed dimensions) std—
59.9 cu ft (Total interior storage) std—
7,700 lb (Towing) / 11,000 lb (Towing) / 11,000 lb (Towing) std—
83.9 in (Cargo bed length with gate down) std—

Highlighted rows are where the two differ. Wording is the manufacturer's own.

Safety record

NHTSA recalls, complaints, NCAP

Rivian R1T

Safety Signal 100 A
NHTSA overall —
Frontal / side / rollover — / — / —
Recalls 0
Owner complaints 1 · 0 crashes · 0 fires
Most complained about Vehicle Speed Control (1)

Top recalls

No recalls on file.

GMC Sierra

Safety Signal 100 A
NHTSA overall —
Frontal / side / rollover — / — / —
Recalls 0
Owner complaints —

Top recalls

No recalls on file.

Ownership

EPA, manufacturer warranty
Rivian R1TR1T Premium (Dual-Motor) AWDGMC SierraPro 2WD
Price$79,990 (base trim)$51,295 (base trim)
Price range across trims$79,990 – $115,990 3 trims$51,295 – $87,895 10 trims
PowertrainsBEVBEV, GAS, Diesel
EPA configuration comparedR1T Premium Long Range (22in)Sierra EV Ext Range (11kW Chgr)
Combined mpg / MPGe8766
EPA annual fuel cost$850$1,150
EV range420 mi396 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 kits

Which is better, the 2027 Rivian R1T or the 2027 GMC Sierra?

The Rivian R1T wins clearly, 89 to 82.8, on safety, performance, fuel & range. The GMC Sierra is ahead on price. On WhichTrim's default weights the 2027 Rivian R1T scores 89 and the 2027 GMC Sierra 82.8. The weights are yours to change — move what you care about and the verdict recalculates on the page.

Which is cheaper, the 2027 Rivian R1T or the 2027 GMC Sierra?

The 2027 GMC Sierra starts lower — $51,295 against $79,990, a gap of $28,695 at the trims compared here. Both are manufacturer MSRPs before destination, options and dealer charges.

Which has the better safety record, the 2027 Rivian R1T or the 2027 GMC Sierra?

2027 Rivian R1T: 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 Rivian R1T and the 2027 GMC Sierra?

Where the 2027 Rivian R1T wins: it lists 19 standard driver-assist features against 0, costs $300 a year less to fuel on the EPA's estimate ($850 against $1,150), and is rated 87 combined against 66 (EPA mpg or MPGe). Where the 2027 GMC Sierra answers: it starts $28,695 lower ($51,295 against $79,990 base MSRP). What they share: a Safety Signal of 100.