A comprehensive comparison of key specifications between the 1991 Bentley Continental R and the 1996 Aston Martin Db7 Volante. To facilitate a clear understanding, we've organized the essential data into a concise table for your convenience.

To sum it up, we've put together a convenient table below, summarizing the key specifications of 1991 Bentley Continental R and 1996 Aston Martin Db7 Volante. Whether you're drawn to 1991 Bentley Continental R's practicality or 1996 Aston Martin Db7 Volante's beauty, this comparison will help you make an informed decision:

Cars
	1991 Bentley Continental R	1996 Aston Martin DB7 Volante
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General
Build Start	1991	1996
ModelVariant	Continental	DB7
Body Details
Body type	2+2 seater fixed-head coupé	2+2 seater convertible/cabriolet
Brakes
bmep (brake mean effective pressure)	1223.9 kPa (177.5 psi)kPa	1893.3kPa
Brakes F/R	VeDi/Di-ABS-S	VeDi/VeDi-S-ABS
Chassis & Geomtry
Length:Wheelbase Ratio	1.75	1.79
Turning circle	13.10 m
Dimensions
Fuel Tank Capacity	108litres	89litres
Ground clearance	132mm	mm
Height	1463mm	1270mm
Kerb weight	2423kg	kg
Length	5342mm	4631mm
Track/tread (front)	1550mm	1524mm
Track/tread (rear)	1550mm	1530mm
Wheelbase	3060mm	2591mm
Width	2045mm	1820mm
Engine details
Aspiration	Turbo	S/Charged
Bore × Stroke	104.1 × 99.1mm	91 × 83mm
Bore/stroke ratio	1.05	1.1
Capacity	6.8 litre (6750 cc)	3.2 litre (3239 cc)
Catalytic converter	Y	Y
Compression Ratio	8:1	8.3:1
Compressor	1 Garrett AiResearch TO4 turbo	Eaton M90 supercharger
Crankshaft Bearings	5
Cylinders	V 8 in 90° vee	Straight 6
Engine coolant	Water	Water
Engine layout	longitudinal	longitudinal
Engine manufacturer	Rolls-Royce	Aston Martin
Engine position	front	front
Engine Type	turbocharged petrol	supercharged petrol
Final drive ratio	3.07	3.54
Gearbox	4	5 speed manual
Intercooler	Yes	Y
Specific output(DIN)	46.7 bhp/litre0.76 bhp/cu in	103.4 bhp/litre1.69 bhp/cu in
Specific torque(DIN)	97.39 Nm/litre, 1.18 ft·lb/cu3	150.66 Nm/litre, 1.82 ft·lb/cu3
Top gear ratio	0.75	0.75
Fuel Consump.
Fuel system	Bo fuel inj.	Zyteck fuel injection
Performance
Acceleration 0-60mph	6.9s	s
Drive wheels	rear wheel drive	rear wheel drive
maximum power output(DIN)	319 PS (315 bhp) (235 kW)at 4500 rpm	340 PS (335 bhp) (250 kW)at 5500 rpm
Maximum speed	233km/h	250km/h
maximum torque(DIN)	657.4 Nm (485 ft·lb) (67 kgm)at 2250 rpm	488 Nm (360 ft·lb) (49.8 kgm)at 3000 rpm
Power-to-weight ratio	131.81 PS/tonne (1000 kg), 96.94 kW/tonne (1000 kg), 130 bhp/tonne (1000 kg), 0.06 bhp/lb
Weight-to-power ratio	10.32 kg/kW, 17.23 lb/bhpkg/kW	kg/kW
Prices
Saftey
Wheels & Tyres
Tyres front	255/60 ZR 16	245/40 ZR 18
Tyres rear	255/60 ZR 16	245/40 ZR 18
Wheel size front	16x7.5	18x8J
Wheel size rear	16x7.5	18x8J
Aerodynamics
Other
Number of doors	2	2
RAC rating	53.8	30.8
Unitary capacity	843.75cc	539.83cc
Valve gear	overhead valve (OHV), 2 valves per cylinder, 16 valves in total	double overhead camshaft (DOHC), 4 valves per cylinder, 24 valves in total

In conclusion, the 1991 Bentley Continental R and 1996 Aston Martin Db7 Volante are two distinct cars and your choice ultimately boils down to your individual preferences and priorities. We hope this analysis aids you in your automotive journey, helping you find the perfect fit for your needs and desires.