Bentley Turbo R

Bentley Turbo R: Which Version to Buy and Why

The Bentley Turbo R catalogue contains one Sedan generation built from 1985 to 1999 and eight entries, all named 6.8 AT. Since the name alone cannot distinguish them, buyers should compare each version by power: 299, 313, 320, 330, 333, 360, 389, or 404 hp.

The Bentley Turbo R catalogue contains one Sedan generation built from 1985 to 1999 and eight entries, all named 6.8 AT. Since the name alone cannot distinguish them, buyers should compare each version by power: 299, 313, 320, 330, 333, 360, 389, or 404 hp. Every version uses the same 6,750 cc turbocharged Gasoline V-shaped 8-cylinder engine layout, RWD, and an Automatic gearbox, but performance, transmission, fuel consumption, and weight vary significantly. On the supplied figures, the 404 hp 6.8 AT is the performance choice, the 299 hp 6.8 AT records the lowest combined consumption, and the 389 hp 6.8 AT offers nearly the strongest performance without carrying the maximum output.

Bentley Turbo R generation and version choice

There is one Bentley Turbo R generation in the catalogue: the 1 generation, produced from 1985 to 1999 as a Sedan. It contains eight versions. The data does not divide the production run into separate generations or identify any restyling, so year-specific searches such as Bentley Turbo R 1988, 1989, 1990, or 1991 specs cannot be matched reliably to a particular power output from this dataset alone. A car should therefore be identified by both its exact 6.8 AT name and its stated horsepower.

Bentley Turbo R engine specs and horsepower

All eight 6.8 AT versions share a 6,750 cc Gasoline engine with 8 cylinders in a V-shaped layout. The engine is mounted Front, longitudinal, uses Turbo boost, has 2 valves per cylinder, a compression ratio of 8, and a bore and stroke of 104.1 × 99.1 mm. All versions specify 95 fuel.

Power density provides a direct way to compare engines with identical displacement. Across the range, it rises from approximately 44.3 hp per litre in the 299 hp 6.8 AT to approximately 59.9 hp per litre in the 404 hp 6.8 AT. The 404 hp version therefore produces about 35.1% more power from the same displacement than the 299 hp version.

The 299 hp version uses a Carburetor, while every other entry uses Distributed injection (multi-point). The 313 hp version adds 14 hp over the 299 hp car while retaining 660 Nm and the 3-speed Automatic. The 320 hp version introduces the 4-speed Automatic in this comparison, although its 620 Nm is 40 Nm below the 313 hp version.

The 330 hp 6.8 AT has 10 hp more than the 320 hp entry but 20 Nm less torque and returns to a 3-speed Automatic. The 333 hp 6.8 AT adds only 3 hp over the 330 hp version, yet its torque rises by 60 Nm to 660 Nm. The 360 hp version then combines a 4-speed Automatic with 750 Nm, an increase of 90 Nm over the 333 hp version.

At the top, the 389 hp 6.8 AT retains 750 Nm but supplies it across 2,000–3,450 rpm. The 404 hp 6.8 AT adds 15 hp and 50 Nm, reaching the catalogue maximum of 800 Nm.

Bentley Turbo R performance, fuel consumption, and mpg comparison

The performance spread is substantial despite the common engine size. The 299 hp 6.8 AT accelerates from 0 to 100 km/h in 7.7 seconds and reaches 217 km/h. The 404 hp version needs 5.9 seconds and reaches 250 km/h, improving the acceleration time by 1.8 seconds and maximum speed by 33 km/h.

For the lowest recorded combined fuel consumption, the 299 hp 6.8 AT leads at 16.7 L/100 km. The 330 hp and 333 hp versions follow at 17.3 L/100 km. The 320 hp, 389 hp, and 404 hp cars each record 18.1 L/100 km combined, so the 404 hp version offers 84 hp more than the 320 hp car with the same stated combined figure.

The 313 hp version has the highest combined consumption at 21.4 L/100 km and the highest highway figure at 18.1 L/100 km. Its combined result is 4.7 L/100 km above the 299 hp version. MPG is not measured in the supplied data; only L/100 km figures are available. CO₂ emissions and environmental class are also not measured.

Bentley Turbo R dimensions, curb weight, and tank capacity

Exterior length, width, height, wheelbase, and wheel sizes are not measured in the supplied data. The available size-related specifications are kerb weight, gross weight, ground clearance, and fuel-tank capacity. Every version has 160 mm of ground clearance and a 108-litre tank.

The 299 hp and 330 hp versions are the lightest at 2,315 kg. The 360 hp, 389 hp, and 404 hp versions are the heaviest at 2,450 kg, a difference of 135 kg. Nevertheless, increasing output improves the power-to-weight relationship: the 404 hp version carries approximately 6.06 kg per horsepower, compared with approximately 7.74 kg per horsepower for the 299 hp car.

All versions use Independent, spring front and rear suspension. Braking equipment consists of Ventilated disc front brakes and Disc rear brakes.

Bentley Turbo R reliability and problems

Reliability, recurring problems, service history, engine-oil specification, engine-run sensor details, engine weight, and engine-swap compatibility are not measured in the supplied data. These points therefore cannot be used to rank the eight versions. The catalogue figures support comparisons of specification, performance, consumption, and vehicle weight only.

Which Bentley Turbo R version should you buy?

Choose the 299 hp 6.8 AT if the priority is the lowest recorded combined consumption. Its 16.7 L/100 km result beats every other entry, and its 2,315 kg kerb weight matches the lowest figure in the range. The trade-off is the slowest 0–100 km/h time at 7.7 seconds and one of the lowest maximum speeds at 217 km/h.

Choose the 330 hp 6.8 AT for the strongest balance among the lighter cars. It weighs 2,315 kg, reaches 100 km/h in 7.0 seconds, and has a 233 km/h maximum speed while recording 17.3 L/100 km combined. Compared with the equally light 299 hp version, it adds 31 hp, cuts 0.7 seconds from the acceleration time, and adds 16 km/h to top speed.

Choose the 360 hp 6.8 AT if 750 Nm and a 4-speed Automatic matter more than minimum fuel use. It reaches 100 km/h in 6.6 seconds and 235 km/h, but its 19.6 L/100 km combined figure is 2.3 L/100 km higher than the 333 hp version’s result.

Choose the 389 hp 6.8 AT as the near-maximum-performance alternative. It offers 750 Nm across 2,000–3,450 rpm, accelerates to 100 km/h in 6.2 seconds, and reaches 242 km/h. Against the 404 hp car, it gives up 15 hp, 50 Nm, 0.3 seconds, and 8 km/h while matching its 2,450 kg kerb weight and 18.1 L/100 km combined consumption.

Choose the 404 hp 6.8 AT when outright catalogue performance is decisive. It has the most power at 404 hp, the most torque at 800 Nm, the quickest 0–100 km/h time at 5.9 seconds, the highest top speed at 250 km/h, and the best weight-per-horsepower figure at approximately 6.06 kg/hp. No price or sale data is provided, so the extra purchase cost—and whether these gains justify it—cannot be measured from this catalogue.