Used 2018 GMC Terrain for Sale near Saint Louis, MO
147 results
CarGurus Analysis:
2018 GMC Terrain
With 148 currently listed for sale near Saint Louis, MO and an average price of $14,685.00, 39.9% of 2018 GMC Terrains for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 GMC Terrain 4.71 / 5 stars.
77.0% of 2018 Terrain models on CarGurus are accident free.
The 2018 GMC Terrain features a range of options with three different engine choices, including a turbocharged 2.0L engine, and offers improved interior design for enhanced comfort and utility.
CarGurus Analysis: 2018 GMC Terrain
overall
Summary
With 148 currently listed for sale near Saint Louis, MO and an average price of $14,685.00, 39.9% of 2018 GMC Terrains for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 GMC Terrain 4.71 / 5 stars.
77.0% of 2018 Terrain models on CarGurus are accident free.
The 2018 GMC Terrain features a range of options with three different engine choices, including a turbocharged 2.0L engine, and offers improved interior design for enhanced comfort and utility.
Why it stands out
The 2018 GMC Terrain marks a significant redesign that moves away from the brand's bold, boxy styling towards a more subdued appearance. This new iteration comes with multiple engine options, offering consumers the flexibility to choose a powertrain that suits their needs, particularly the robust turbocharged 2.0-liter engine that delivers impressive performance. Inside, the Terrain has improved its cabin quality and layout, providing more storage and enhanced tech features like an 8-inch touchscreen with Apple CarPlay and Android Auto compatibility. However, this redesign has drawn mixed reviews, with concerns raised regarding its safety ratings and overall value compared to competitors such as the Honda CR-V, which offers more space and better safety scores at a comparable price point. The Terrain aims to please with its comfortable ride and variety of features, but potential buyers might want to weigh these benefits against its limitations in safety and performance.
Other model years to consider
- Average price: $24,409.00
- Good/great deal percentage: 43.2%
- User rating: 5 / 5
- Total listings: 241
- Average price: $21,224.00
- Good/great deal percentage: 51.4%
- User rating: 4.83 / 5
- Total listings: 177
- Average price: $17,698.00
- Good/great deal percentage: 49.1%
- User rating: 5 / 5
- Total listings: 167
This analysis is based on CarGurus' proprietary market data from June 2, 2026, CarGurus experts' opinions, and generative AI.
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4.8 Overall rating
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Anonymous
Reviewed a 2018 GMC Terrain on Mar 21, 2021
It’s the Denali so it has everything you need plus more. Only thing that would make it better would be a V6 but this 2.0 turbo has major get up and go.
James A
Reviewed a 2018 GMC Terrain on May 15, 2020
The car is amazing and of great value. We purchased this vehicle for under the market value and it is in excellent condition. I did a thorough walk around and probably looked like an idiot looking for the smallest dents and scratches. The vehicle has great options, panoramic roof and good quality materials, especially for the price. What a steal my wife got!!!!
megan j
Reviewed a 2018 GMC Terrain on May 6, 2020
This car exceeded my highest expectations. Very nice ride, appropriate amount of room and has a very sporty feel. Has a lot of extra features that make it over all a very nice care. The push gear buttons will take some time to get use to but over all very very cool.
Rachel B
Reviewed a 2018 GMC Terrain on Jan 24, 2020
I like the car, but the brakes are a little sensitive and the pick-up (from a stop) can be jerky. Otherwise, it is smooth, comfortable, and a quiet ride.
2018 GMC Terrain Trims
| Trim type | MSRP |
|---|---|
| SLE Diesel | $31,590 |
| SLT Diesel AWD | $35,915 |
| Denali | $37,520 |
| SLT | $31,320 |
| SLT AWD | $33,070 |
| Denali AWD | $39,270 |
| SLE AWD | $29,570 |
| SLE | $27,820 |
2018 GMC Terrain Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2018 GMC Terrain prices has changed over time.
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