A comprehensive comparison of key specifications between the 1961 Ac Ace Zephyr and the 69 Ford Mustang Shelby Gt500. 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 1961 Ac Ace Zephyr and 69 Ford Mustang Shelby Gt500. Whether you're drawn to 1961 Ac Ace Zephyr's practicality or 69 Ford Mustang Shelby Gt500's beauty, this comparison will help you make an informed decision:

Cars
	1961 AC Ace-Zephyr	1969 Ford Mustang Shelby GT500
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General
Body Details
Body type	2 seater convertible/cabriolet
Brakes
bmep (brake mean effective pressure)	886 kPa (128.5 psi)kPa
Brakes F/R	Di/Dr
Chassis & Geomtry
Front suspension	I.TL.
Length:Wheelbase Ratio	1.69
Rear suspension	I.TL.
Turning circle	10.40 m
Turns Lock-to-Lock	2.000
Dimensions
Fuel Tank Capacity	54.6litres
Ground clearance	178mm
Height	1245mm	1280mm
Kerb weight	813kg
Length	3855mm	4840mm
Track/tread (front)	1270mm
Track/tread (rear)	1270mm
Wheelbase	2286mm
Width	1485mm	1830mm
Engine details
Aspiration	Normal
Bore × Stroke	82.55 × 79.5mm
Bore/stroke ratio	1.04
Capacity	2.6 litre (2553 cc)
Catalytic converter	N
Compression Ratio	7.8:1
Cylinders	Straight 6
Engine coolant	Water
Engine layout	longitudinal
Engine manufacturer	Ford
Engine position	front
Engine Type	naturally aspirated petrol
Final drive ratio	3.64
Gearbox	4
Specific output(Net)	39.2 bhp/litre0.64 bhp/cu in
Specific torque(Net)	70.51 Nm/litre, 0.85 ft·lb/cu3
Top gear ratio	1
Fuel Consump.
Fuel system	1 Ze carb
Performance
Drive wheels	rear wheel drive
maximum power output(Net)	101 PS (100 bhp) (75 kW)at 5500 rpm
maximum torque(Net)	180 Nm (133 ft·lb) (18.4 kgm)at 2000 rpm
Power-to-weight ratio	124.71 PS/tonne (1000 kg), 91.72 kW/tonne (1000 kg), 123 bhp/tonne (1000 kg), 0.05 bhp/lb
Weight-to-power ratio	10.9 kg/kW, 18.21 lb/bhpkg/kW
Prices
Saftey
Wheels & Tyres
Aerodynamics
Other
Number of doors	2
RAC rating	25.4
Unitary capacity	425.5cc
Valve gear	overhead valve (OHV), 2 valves per cylinder, 12 valves in total

In conclusion, the 1961 Ac Ace Zephyr and 69 Ford Mustang Shelby Gt500 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.