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2018 Chevrolet Corvette Grand Sport Convertible 8AT

The 2018 Chevrolet Corvette Grand Sport Convertible 8AT is a 460-hp 6.2-liter V8 convertible with an 8-speed automatic and rear-wheel drive. It starts at $69,495 MSRP and is rated at 18 mpg combined.

It makes 460 horsepower at 6,000 rpm and 465 lb-ft of torque at 4600 rpm, spinning to a 6,600 rpm redline. EPA fuel-economy estimates are 15 mpg city and 25 mpg highway (18 mpg combined).

The Corvette measures 177.9 inches long on a 106.7-inch wheelbase and has a curb weight of 3,487 lb.

Spec Value
Vehicle
Body TypeConvertible
PowertrainGas
Price
MSRP$69,495
MSRP with Destination$70,590
Destination Charge$1,095
Engine
Engine TypeLT1; Gas V8; 6.2L V-8; Direct Injection
Displacement6.2 L
Horsepower460 hp @ 6,000 rpm
Torque465 lb-ft @ 4600 rpm
Redline6,600 rpm
Injection TypeDirect Injection
Drivetrain
Drive TypeRWD
Transmission
Transmission8-speed automatic (EPA S8)
Fuel Economy
City15 MPG
Highway25 MPG
Combined18 MPG
Recommended FuelPremium unleaded
Tank Capacity18.5 gal
Suspension
Front SuspensionShort/Long Arm; Transverse Leaf Spring
Rear SuspensionShort/Long Arm; Transverse Leaf Spring
Turning Diameter37.7 ft
Tires & Wheels
Wheels Front19 x 10 in
Wheels Rear20 x 12 in
Tires FrontP285/30ZR19
Tires RearP335/25ZR20
Dimensions & Weight
Length177.9 in
Width77.4 in
Height48.7 in
Wheelbase106.7 in
Front Track63.5 in
Rear Track62.5 in
Cargo Volume10 ft³
Curb Weight3,487 lbs
Interior
Headroom Front37.9 in
Legroom Front43 in
Shoulder Room Front55.2 in
Hip Room Front53.7 in

Similar cars

Rivals to the 2018 Chevrolet Corvette Grand Sport Convertible 8AT with similar size, power and price from around the same years.

Safety & Recalls

NCAP safety ratings

Tested, but no star ratings were published (2018 Chevrolet Corvette 2 DR RWD).

Recalls

1 recall on file with NHTSA for the 2018 Chevrolet CORVETTE. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.

Mar 20, 2025 · STEERING:ELECTRIC POWER ASSIST SYSTEM

General Motors LLC (GM) is recalling certain 2016-2018 Cadillac CTS, 2017-2018 Cadillac ATS, Chevrolet Camaro, and Chevrolet Corvette vehicles. The electric power steering (EPS) assist may fail.

Consequence: A loss of power steering assist can require greater steering effort, especially at low speeds, increasing the risk of a crash.

Remedy: Dealers will replace the power steering gear assembly, free of charge. Owner notification letters were mailed April 15, 2025. Owners may contact Cadilac customer service at 1-800-333-4223 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252497020.

NHTSA campaign 25V175000

51 owner complaints to NHTSA for the 2018 Chevrolet CORVETTE

Owner Complaints

51 owner complaints filed with NHTSA for the 2018 Chevrolet CORVETTE (1 mention a crash). See all on nhtsa.gov

Most-cited areas
Wheels45
Service Brakes2
Electrical System1
Power Train1
Steering1
Structure1
A complaint can cite more than one area.
Most recent complaints
Dec 24, 2024 · Wheels
“Wheels on these cars commonly crack and break online. Mine have a visible crack in one of them and is losing air due to quality of wheel from Chevrolet”
Nov 26, 2024 · Unknown Or Other
“Multiple rim cracks due to manufacturing error. General Motors had acknowledged this but not made reimbursement possible nor provided information if defective rims are still being produced. My car was…”
Oct 18, 2023 · Wheels
“Inside lip of rear wheel cracked and wheel bent beyond repair, per wheel repair company. OEM make and model tire was in place and no noticeable impact was felt to cause this failure. This caused an…”
Sep 5, 2023 · Wheels
“Vehicle had a shake, and felt like it was shifting wrong. Apparently, Two of the four rims have were confirmed cracked which led to an unsafe vehicle for travel. The vehicle had approximately 15,230…”
Sep 27, 2022 · Wheels
“Rear wheel cracked in 4 places inside rim towards outside causing slow leak. Could eventually crack enough to cause wheel to fail.”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2018 CHEVROLET CORVETTE. US-market vehicles only; data cached for up to 7 days.

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