2018 GMC Terrain Review: A Refined Compact SUV with Impressive Engine Options

Key Takeaways: The redesigned 2018 GMC Terrain offers three distinct engine choices including a fuel-efficient turbo-diesel, premium Denali trim, and improved driving dynamics while maintaining practical SUV versatility.

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Redesigned for 2018: A New Chapter for GMC's Compact SUV

GMC completely reimagined its Terrain SUV for the 2018 model year, marking a significant evolution from the model first introduced in 2010. The new generation arrives at dealerships with a more sophisticated design, reduced weight, and an expanded powertrain portfolio that includes a rare-in-class turbo-diesel option. After extensive testing in varied conditions including Pittsburgh's challenging terrain (one of GMC's development locations), the Terrain demonstrates notable improvements in refinement, comfort, and performance that help it stand out in the competitive compact SUV segment.

Trim Level Breakdown

The 2018 Terrain offers something for every buyer across its trim range:

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Engine Options: Three Distinct Personalities

The 2018 Terrain distinguishes itself with three available engines, each catering to different priorities:

1.5L Turbocharged Four-Cylinder (Base Engine)

Don't let the small displacement fool you - the 1.5L turbocharged four-cylinder delivers a robust 170 horsepower and 203 lb-ft of torque. In real-world driving with an all-wheel-drive SLE model, this engine proves surprisingly capable:

• Provides confident acceleration for merging and passing
• Pairs seamlessly with the 9-speed automatic transmission
• Maintains composure on two-lane road passing situations
• Occasionally caught in too-high gear exiting tight corners

The transmission deserves special mention for its smooth operation, a notable improvement over problematic 9-speed units in competitors like the Honda Pilot and Jeep Cherokee.

2.0L Turbocharged Four-Cylinder (Performance Option)

For drivers seeking more spirited performance, the optional 2.0L turbocharged four-cylinder delivers 252 horsepower and 260 lb-ft of torque, putting the Terrain in the same performance league as the most powerful Ford Escape variants:

• Noticeably stronger acceleration across all speeds
• Excellent high-speed passing capability
• More engine noise enters the cabin compared to 1.5L
• Justifies its premium for performance-oriented buyers
• 

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1.6L Turbo-Diesel (Efficiency Champion)

In a bold move for the segment, GMC offers a 1.6L turbo-diesel four-cylinder that achieves remarkable fuel efficiency:

The diesel's character differs significantly from the gasoline engines:

• More vibration and noise (though less "clattery" than traditional diesels)
• Gradual accelerator response compared to gas engines
• Exceptional low-end torque for effortless hill climbing
• Maintains composure even with full passenger/cargo load
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Innovative Shifter Design

The Terrain introduces a toggle-switch gear selector that proves more intuitive than competing push-button systems:

• Horizontal layout allows quick shifts between Drive and Reverse
• Easier to operate by feel than vertical arrangements
• Short learning curve for most drivers
• Creates additional console storage space
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Driving Dynamics and Comfort

GMC tuned the Terrain's suspension to strike a balance between comfort and control:

• Firm but compliant ride quality
• Composed over rough surfaces and railroad crossings
• Less athletic than Ford Escape in corners
• Light steering with minimal feedback
• Refinement comparable to Volkswagen Tiguan
• Superior to Nissan Rogue in driving dynamics

Standing Out in a Crowded Segment

The compact SUV market remains fiercely competitive, but the 2018 Terrain makes a strong case for itself with:

• Widest engine selection in class (including diesel)
• Retained practicality from previous generation
• Contemporary styling and technology
• Denali trim for luxury-oriented buyers
• Competitive fuel efficiency across all powertrains

While we'll cover infotainment, safety features, and interior versatility in future reviews, the 2018 GMC Terrain already establishes itself as a compelling choice for compact SUV shoppers seeking a balance of efficiency, performance, and premium appeal.