Used BMW 6 Series GT Guide

The BMW 6 Series Gran Turismo stands out in the used luxury car market as a versatile hatchback that combines exceptional passenger space, high-end materials, and effortless long-distance cruising. Produced from 2017 to 2020, this model bridges the gap between the practical 5 Series and the opulent 7 Series, offering a longer wheelbase for superior rear legroom while maintaining BMW’s signature driving dynamics. Buyers seeking a refined alternative to SUVs or saloons will find it particularly appealing for its blend of performance, economy, and utility.

Design and Exterior Appeal

At first glance, the 6 Series GT’s fastback silhouette sets it apart from traditional sedans. Measuring about 15cm longer than the 5 Series, its stretched roofline and sloping rear create a distinctive profile that’s both elegant and polarizing. The front fascia features BMW’s classic kidney grille, flanked by slim adaptive LED headlights that provide excellent visibility. Alloy wheels range from 18 to 20 inches, enhancing its premium stance without compromising ride quality.

Practical touches include a hands-free power tailgate and optional panoramic sunroof, though some owners report minor wind noise from the large glass panel at highway speeds. The frameless door windows add a coupe-like flair, but they can introduce subtle drafts. Paint quality holds up well over time, with metallic finishes resisting fading better than matte options on higher-mileage examples.

Spacious and Luxurious Cabin

Step inside, and the 6 Series GT reveals its strongest suit: cavernous interior space. The cabin uses soft-touch leather, wood veneers, and metallic accents, creating an ambiance closer to the 7 Series than its 5 Series sibling. Front seats are multi-adjustable with heating and memory functions standard on mid-trims, offering excellent support for long journeys.

Rear passengers benefit immensely from the extended wheelbase, shared with the 7 Series, allowing six-foot adults to stretch out comfortably. Unlike the 5 Series saloon, headroom remains generous despite the hatchback shape, making it suitable for four or five occupants on extended trips. The higher seating position provides a commanding view, akin to a lifted saloon without SUV bulk.

Boot capacity impresses at 610 litres with seats raised, expanding to 1,800 litres folded—surpassing the 5 Series Touring. A low load lip and 40/20/40 split-folding seats enhance versatility for luggage or bikes.

Advanced Infotainment and Tech

The iDrive system anchors the tech suite, operated via a precise rotary controller with a responsive touchscreen. Standard features include satellite navigation, dual-zone climate control, and a reversing camera. Higher trims add wireless Apple CarPlay, gesture controls, and BMW ConnectedDrive for remote services like Alexa integration.

Proactive Driving Assistant uses GPS data to optimize gear selection for hills or junctions, smoothing highway drives. Audio options range from a Harman Kardon setup to a Bowers & Wilkins unit, delivering concert-hall clarity. However, older 3G-connected models may need software updates for full app compatibility, as some services phased out support.

• Key Tech Highlights:
• Sat-nav with traffic updates
• Adaptive cruise and lane assist
• Head-up display on Luxury Line
• Wireless charging pad (optional)

Engine Lineup and Performance

All 6 Series GT models pair smooth ZF automatic transmissions with either rear-wheel or xDrive all-wheel drive. Diesel fans favor the 630d xDrive, a 3.0-liter unit producing 265hp and 620Nm torque, achieving 0-62mph in 6.1 seconds and up to 50mpg on motorways. Its low-end pull excels for overtaking, paired with respectable economy.

Petrol variants like the 640i (335hp) offer refined thrust but thirstier returns around 35mpg. The range-topping 630d M Sport delivers sharper responses without sacrificing usability. xDrive variants shine in wet conditions, distributing power seamlessly for confident grip.

Steering is accurate but lacks the feedback of sportier BMWs, prioritizing comfort over thrills. The 630d feels nimble for its 1,900kg weight, thanks to aluminum components reducing mass versus rivals.

Ride Comfort and Handling Balance

Standard suspension copes well, but optional adaptive air suspension transforms the experience, ironing out bumps while firming up for corners. Ride modes—Comfort, Adaptive, Sport—tailor responses, with self-leveling rear air maintaining stability when laden.

On twisty roads, it hustles effectively, body roll minimized by a low center of gravity. Brakes provide strong stopping power, though some note fade during spirited downhill runs. Highway refinement is exemplary, with low noise and vibration isolation, making it ideal for 500-mile days.

Trims, Equipment, and Buying Tips

Entry SE trim packs value: 18-inch wheels, LED lights, parking aids, and leather. Sport Line adds body kits and sports seats; Luxury Line emphasizes chrome and softer cushions; M Sport brings aggressive styling and adaptive dampers.

When shopping used, prioritize 2018+ models for updated iDrive and fewer early niggles. Check service history—diesels need AdBlue monitoring. Air suspension faults are rare but costly; test by loading the boot. Sunroof deflectors may stick, fixed with lubrication. Expect prices from £20,000 for higher-mileage 630d to £35,000 for low-mile M Sport.

• What to Inspect:
• Full BMW service records
• Air suspension operation
• Turbo health on diesels (smoke-free exhaust)
• Electronics functionality

Reliability, Running Costs, and Ownership

BMW’s engineering shines, with strong build quality and few widespread issues. Diesels prove durable past 100,000 miles with maintenance. Insurance groups hover at 40-45, reflecting performance. Fuel economy offsets taxes, especially for company car users.

Tyres and brakes are pricey, but parts availability remains good. Towing capacity hits 2,100kg braked across the range, perfect for caravans. Resale holds better for xDrive models due to all-weather appeal.

Comparisons with Rivals

Versus the Mercedes E-Class All-Terrain, the BMW offers sharper handling but less rustic charm. Audi A6 Avant matches space but trails in ride plushness. The 5 Series Touring is cheaper and more common, yet lacks the GT’s rear limo-like room. For those prioritizing uniqueness, the 6 GT’s rarity adds cachet—fewer than in mainstream models.

Frequently Asked Questions

Is the BMW 6 Series GT reliable?

Yes, with proper servicing, it matches BMW norms—strong engines and chassis, minor electronics glitches possible on early units.

What’s the best engine for used buys?

The 630d xDrive balances power, economy, and drivability for most owners.

How does boot space compare to SUVs?

It rivals mid-size SUVs like the BMW X3, with easier loading and better dynamics.

Any common problems to avoid?

Watch for air suspension leaks and sunroof mechanisms; test thoroughly.

Is it good for towing?

Excellent at 2,100kg, with stable handling even when hitched.

Final Thoughts on Value

The 6 Series GT excels as a used proposition for those needing luxury without ostentation. Its space, refinement, and tech make it a standout, though budget for premium upkeep. In a sea of SUVs, it offers saloon poise with hatch practicality—a clever choice for discerning drivers.

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medha deb

 

Medha Deb is an editor with a master's degree in Applied Linguistics from the University of Hyderabad. She believes that her qualification has helped her develop a deep understanding of language and its application in various contexts.

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