2018 Audi A8 55 TFSI Review: Tech-Driven Luxury Verdict

The 2018 Audi A8 55 TFSI stands as a pinnacle of engineering excellence in the full-size luxury sedan segment. Powered by a robust 3.0-liter V6 turbocharged engine delivering 340 horsepower and 500 Nm of torque, this model combines effortless highway cruising with surprising agility on winding roads. Its adaptive air suspension ensures a sublime ride over diverse surfaces, from cratered backroads to smooth motorways, making it an ideal choice for long-distance travel.

Engine and Powertrain Excellence

At the heart of the A8 55 TFSI lies a 3.0-liter V6 petrol engine producing 340 hp between 5,000-6,400 rpm and 500 Nm from 1,370-4,500 rpm. This powertrain propels the sedan from 0-100 km/h in 5.6 seconds, with a top speed electronically limited to 250 km/h. Paired with an 8-speed automatic transmission and Audi’s quattro all-wheel-drive system, it offers seamless gear shifts and confident traction in varied conditions.

The integration of a 48V mild-hybrid system enhances efficiency, allowing the engine to shut down for up to 40 seconds during coasting, reducing fuel consumption to a claimed 8.3 L/100 km. On highways, the engine cruises at just 1,100 rpm, contributing to whisper-quiet operation where road and wind noise are virtually eliminated. Reviewers note the engine’s velvety smoothness and ample low-end torque, making overtakes effortless without frequent downshifts, though paddle shifters provide manual intervention when needed.

Chassis Dynamics and Ride Comfort

The A8 55 TFSI excels in delivering a cosseting ride that isolates occupants from imperfections. Standard adaptive air suspension adjusts dynamically, providing plush compliance in Comfort mode for motorway dominance and firmer settings in Dynamic mode for spirited handling. All-wheel steering enhances maneuverability, making the large sedan feel nimble in urban environments and tight turns.

Despite its 1,920 kg curb weight, the A8 demonstrates spry handling, cornering with poise thanks to precise steering and balanced chassis tuning. Double-glazing and acoustic enhancements further amplify refinement, creating a cabin that feels detached from external chaos. Boot space measures 505 liters, ample for luggage, while the regular wheelbase offers generous rear legroom, questioning the necessity of the long-wheelbase variant for most buyers.

• Stunning ride quality: Absorbs bumps effortlessly across road types.
• Agile handling: All-wheel steering reduces turning radius for city driving.
• Highway prowess: Cruises silently at low revs with mild-hybrid efficiency.

Interior Luxury and Space Optimization

The cabin represents Audi’s craftsmanship zenith, with minimalist design featuring flush-mounted air vents that retract behind wood inserts. High-quality materials, extended LED ambient lighting, and optional massaging seats create an opulent atmosphere. Rear passengers enjoy vast space, climate-controlled zones, and easy access, rivaling chauffeur-driven rivals.

Storage is thoughtfully integrated, though limited in some areas, prioritizing form and passenger comfort. The standard equipment list is comprehensive even at the £71,030 base price, including four-zone climate control, privacy glass, and a 730-watt Bang & Olufsen audio system in tested packs. Front occupants benefit from wireless charging, a smart steering wheel, and ergonomic seating.

Infotainment and Technological Innovations

Audi’s groundbreaking three-screen MMI system debuts here: dual touchscreens for infotainment and HVAC, plus the Virtual Cockpit digital gauge cluster. This haptic-feedback interface offers intuitive control, though some find touch-only navigation fiddly without a rotary dial. OLED lighting technology enhances front-end aesthetics and safety features.

Advanced driver aids include 360-degree cameras and semi-autonomous capabilities, though full Level 3 autonomy awaits regulatory approval in some markets. The system’s seamlessness elevates the driving experience, making the A8 a tech showcase.

Design and Exterior Presence

Exterior styling adopts a conservative yet elegant approach with a bold grille, sleek lines, and optional OLED headlights for distinctive lighting signatures. At 5.17 meters long, it commands attention without ostentation, blending into executive fleets seamlessly. Quattro badging underscores its all-weather capability.

Performance in Real-World Scenarios

In urban settings, the A8 navigates with ease, its size belied by agile steering. On rural A-roads, it sweeps corners with verve, while motorways highlight its mile-munching refinement. Fuel economy holds near claims in mixed driving, aided by the mild-hybrid.

Drawbacks include styling that trails bolder rivals like the Mercedes S-Class and initial absence of V8 engines, positioning the V6 as somewhat mid-range for flagship prestige. The interior, while superb, mirrors A6/A7 familiarity, diluting exclusivity.

Competitive Positioning

Against the BMW 7 Series and Mercedes S-Class, the A8 prioritizes tech-forward serenity and driver engagement over outright opulence. Its pricing, around $195,000-$203,000 in select markets, reflects loaded standard features, offering value in luxury.

Pricing and Ownership Considerations

Starting at approximately £71,030 in the UK, with tested models adding minimal options like £4,115 for premium packs. Running costs benefit from efficiency tech, though premium fuel and maintenance suit executive buyers. Resale holds strong due to Audi’s prestige.

Frequently Asked Questions (FAQs)

Is the 2018 Audi A8 55 TFSI suitable for rear passengers?

Yes, the spacious rear seats and optional four-zone climate make it limo-like, often rendering the L version unnecessary.

How does the fuel economy compare in real-world driving?

Close to the 8.3 L/100 km claim, thanks to mild-hybrid coasting and low-rev cruising.

What are the main limitations of the infotainment system?

Dual touchscreens can feel fiddly without haptic feedback mastery, especially for navigation.

Does it offer V8 engines?

Not at launch; V6 is standard initially, with V8s expected later for more power.

Is all-wheel drive standard?

Yes, quattro AWD is fitted across the A8 lineup for superior handling.

Verdict: A Tech-Driven Luxury Leader

The 2018 Audi A8 55 TFSI sets benchmarks in refinement, technology, and balanced dynamics, earning praise as Audi’s finest full-size limo. While awaiting V8 muscle and bolder styling, it excels as a driver’s luxury sedan.