Comparison Audi A6 (4F,C6) 3.2 FSI V6 (255 Hp) quattro Tiptronic & BMW 7 Series (E23, facelift 1983) 732i (197 Hp) & Citroen C4 I Picasso (Phase I, 2007) 1.6 VTi (120 Hp) & Mercedes-Benz S-class (W116) 350 SE,SEL (205 Hp) & BMW 7 Series L (E38) 728iL (193 Hp) Steptronic & Citroen C4 I Coupe (Phase I, 2004) 1.6 HDi 16V (109 Hp) & Citroen C4 L sedan (Phase I, 2012) 1.6 VTi 16V (116 Hp)
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| Brand: | Audi | BMW | Citroen | Mercedes-Benz | BMW | Citroen | Citroen |
| Model: | A6 | 7 Series | C4 | S-class | 7 Series | C4 | C4 |
| Generation: | A6 (4F,C6) | 7 Series (E23, facelift 1983) | C4 I Picasso (Phase I, 2007) | S-class (W116) | 7 Series L (E38) | C4 I Coupe (Phase I, 2004) | C4 L sedan (Phase I, 2012) |
| Engine / modification: | 3.2 FSI V6 (255 Hp) quattro Tiptronic | 732i (197 Hp) | 1.6 VTi (120 Hp) | 350 SE,SEL (205 Hp) | 728iL (193 Hp) Steptronic | 1.6 HDi 16V (109 Hp) | 1.6 VTi 16V (116 Hp) |
| Production start: | 2004 year | 1983 year | 2008 year | 1976 year | 1995 year | 2004 year | 2012 year |
| Production end: | 2008 year | 1986 year | 2010 year | 1980 year | 1998 year | 2008 year | 2016 year |
| Coupe type: | Sedan | Sedan | Hatchback | Sedan | Coupe | Sedan | |
| Num. of Doors: | 4 | 4 | 5 | 4 | 3 | 4 | |
| Num. of seats: | 5 | 5 | 5 | 5 | 5 | 5 | |
| Fuel consumption / economy - urban: | 15.7 l/100 km | 16.8 l/100 km | 10.0 l/100 km | 16 l/100 km | 6.1 l/100 km | 9.4 l/100 km | |
| Fuel consumption / economy - extra urban: | 8.1 l/100 km | 8.4 l/100 km | 5.9 l/100 km | 8.3 l/100 km | 4.0 l/100 km | 5.8 l/100 km | |
| Fuel consumption / economy - combined: | 10.9 l/100 km | 11.8 l/100 km | 7.4 l/100 km | 11.1 l/100 km | 4.8 l/100 km | 7.1 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) | Diesel | Petrol (Gasoline) |
| Drag coefficient: | 0.29 | 0.40 | 0.31 | 0.30 | 0.28 | ||
| Fuel tank volume: | 80 l | 100 l | 60 l | 85 l | 60 l | 60 l | |
| Emission standard: | Euro 4 | Euro 4 | EURO IV | EURO IV | |||
| CO2 emissions: | 262 g/km | 174 g/km | 128 g/km | 164 g/km | |||
| Power: | 255 hp | 197 hp | 120 hp | 205 hp | 193 hp | 109 hp | 116 hp |
| Max power in: | 6500 rpm. | 5500 rpm. | 6000 rpm. | 5300 rpm. | 4000 rpm. | 6050 rpm. | |
| Maximum speed: | 250 km/h | 208 km/h | 186 km/h | 225 km/h | 192 km/h | 189 km/h | |
| Acceleration from 0 to 100 km/h: | 7.1 sec | 8.6 sec | 12.1 sec | 9.6 sec | 12.4 sec | 10.9 sec | |
| Torque: | 330 Nm @ 3250 rpm. | 285 Nm @ 4300 rpm. | 160 Nm @ 4250 rpm. | 280 Nm @ 3950 rpm. | 245 Nm/2000 rpm. | 150 Nm/4000 rpm. | |
| Model Engine: | AUK, BKH | ||||||
| Engine position: | Front, longitudinal | Front, longitudinal | Front, transverse | Front, longitudinal | Front, transverse | Front, transverse | |
| Engine displacement: | 3123 cm3 | 3210 cm3 | 1598 cm3 | 2793 cm3 | 1560 cm3 | 1587 cm3 | |
| Engine oil capacity: | 6.5 l | 4.25 l | 6.5 l | 3.75 l | 4.25 l | ||
| Coolant: | 12.0 l | 6 l | 10.5 l | 6.5 l | |||
| Fuel System: | Direct injection | Multi-point injection | Multi-point injection | Multi-point injection | Diesel Commonrail | Multi-point injection | |
| Aspiration / Turbine: | Turbocharging | ||||||
| Position of cylinders: | V engine | Inline | Inline | Inline | Inline | Inline | |
| Valvetrain: | DOHC | DOHC | DOHC | DOHC | |||
| Number of cylinders: | 6 | 6 | 4 | 6 | 4 | 4 | |
| Number of valves per cylinder: | 4 | 2 | 4 | 4 | 4 | 4 | |
| Compression ratio: | 12.5 | 10 | 11 | 10.2 | 17.6 | ||
| Piston Stroke: | 92.8 mm | 86 mm | 85.8 mm | 84 mm | 88.3 mm | 82 mm | |
| Cylinder Bore: | 84.5 mm | 89 mm | 77 mm | 84 mm | 75 mm | 78.5 mm | |
| Wheel Drive: | All wheel drive (4x4) | Front wheel drive | Rear wheel drive | Front wheel drive | Front wheel drive | ||
| Number of Gears (automatic transmission): | 6 Tiptronic | 5 Steptronic | |||||
| Number of Gears (manual transmission): | 5 | 5 | 5 | 5 | 5 | ||
| Length: | 4916 mm | 4860 mm | 4470 mm | 5124 mm | 4273 mm | 4621 mm | |
| Width: | 1855 mm | 1800 mm | 1830 mm | 1862 mm | 1769 mm | 1779 mm | |
| Width with mirrors folded: | 1918 mm | ||||||
| Width including mirrors: | 2100 mm | 1964 mm | 2058 mm | ||||
| Height: | 1459 mm | 1430 mm | 1660-1680 mm | 1425 mm | 1456 mm | 1498-1508 mm | |
| Wheelbase: | 2843 mm | 2795 mm | 2728 mm | 3070 mm | 2608 mm | 2708 mm | |
| Front track: | 1612 mm | 1502 mm | 1505 mm | 1552 mm | 1505 mm | 1526-1520 mm | |
| Rear (Back) track: | 1618 mm | 1524 mm | 1539 mm | 1568 mm | 1502 mm | 1521-1515 mm | |
| Front overhang: | 995 mm | 935 mm | 961 mm | ||||
| Rear overhang: | 747 mm | 730 mm | 952 mm | ||||
| Minimum volume of Luggage (trunk): | 546 l | 480 l | 500 l | 500 l | 314 l | 440 l | |
| Maximum amount of Luggage (trunk): | 546 l | 1734 l | 1083 l | ||||
| Front suspension: | Independent multi-link | Independent, Spring McPherson, with stabilizer | Independent, Spring McPherson, with stabilizer | Wishbone | Independent, Spring McPherson, with stabilizer | Independent, Spring McPherson, with stabilizer | |
| Rear suspension: | Independent on trapezoidal lever | Independent, spring | Semi-independent, spring | Inclined Lever | Independent, spring | Semi-independent, spring | |
| Max weight: | 2260 kg | 2010 kg | 2015 kg | 2260 kg | 1790 kg | 1790 kg | |
| Front brakes: | Ventilated discs | Disc | Ventilated discs | Ventilated discs | Ventilated discs | Ventilated discs | |
| Rear brakes: | Disc | Drum | Disc | Disc | Disc | Disc | |
| Kerb Weight: | 1680 kg | 1500 kg | 1458 kg | 1725 kg | 1269 kg | 1330 kg | |
| ABS: | yes | yes | yes | yes | yes | ||
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion | ||
| Power steering: | Hydraulic Steering | Electric Steering | Electric Steering | ||||
| Max. roof load: | 100 kg | 80 kg | 75 kg | ||||
| Permitted trailer load with brakes (8%): | 2100 kg | 1300 kg | |||||
| Minimum turning circle (turning diameter): | 11.9 m | 11.6 m | 11.33 m | 12.2 m | 11.3 m | ||
| Permitted trailer load with brakes (12%): | 1900 kg | 1400 kg | 1300 kg | ||||
| Permitted trailer load without brakes: | 750 kg | 750 kg | 672 kg | ||||
| Permitted towbar download: | 85 kg | 60 kg | 66 kg | ||||
| Tire size: | 225/55 R16 | 205/70 R 14 | 215/55 R16 | 215/65 R16 | 195/65 R15; 205/55 R16 | 215/55 R16 | |
| Wheel rims size: | 7.5J x 16 | R14 | R16 | R16 | 6J x 15; 6.5J x 15 | R16 |