1951 Buick XP-300 Concept

This automobile has a 2 door convertible/cabriolet type body with a front positioned engine driving through the rear wheels. The 3.5 litre engine is a supercharged, overhead valve, 8 cylinder that has an output of 335 bhp (340 PS/250 kW) of power at 5500 rpm. The engine transmits power to the wheels via an automatic gearbox.


Buick XP-300 -
Buick XP-300
Image courtesy of Buick

Key facts

1951 Buick XP-300 Concept information summary

What body style?
2 door convertible/cabriolet with 2 seats
How long?
4890 mm
What size engine?
3.5 litre, 3535 cm3
How many cylinders?
8, V
How much power?
340 PS / 335 bhp / 250 kW @ 5500 rpm
How much torque?
1951 Buick XP-300 data
Body type2 seater convertible/cabriolet
Number of doors2
dimensions & weights
Wheelbase 2946 mm 116 inches
Track/tread (front) 1501 mm 59.1 inches
Track/tread (rear) 1524 mm 60 inches
Length 4890 mm 192.5 inches
Width 2032 mm 80 inches
Height 1356 mm 53.4 inches
Ground clearance 168 mm 6.6 inches
length:wheelbase ratio 1.66
Kerb weight
Weight distribution
fuel tank capacity
Drag coefficient
Frontal area
engine type supercharged petrol
Engine manufacturer Buick
Engine code
Cylinders V 8 in 90° vee
Capacity 3.5 litre
3535 cc
(215.719 cu in)
Bore × Stroke 82.55 × 82.55 mm
3.25 × 3.25 in
Bore/stroke ratio 1
Valve gear overhead valve (OHV)
2 valves per cylinder
16 valves in total
maximum power output 340 PS (335 bhp) (250 kW)
at 5500 rpm
Specific output 94.8 bhp/litre
1.55 bhp/cu in
maximum torque
Specific torque
Engine construction
sump wet sumped
compression ratio 10:1
Fuel system 2 carburettors
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 441.88 cc
Aspiration S/Charged
Catalytic converter N
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed
Power-to-weight ratio
Weight-to-power ratio
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
Engine position front
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
turns lock-to-lock
Turning circle 12.00 m
Front suspension I.
Rear suspension dD.CS.
Wheel size front 6.0L x 15
Wheel size rear 6.0L x 15
Tyres front 7.10 x 15
Tyres rear 7.10 x 15
Brakes F/R Dr/Dr-S
Front brake diameter 229 mm
Rear brake diameter 229 mm
Braked area
Gearbox automatic
Top gear ratio
Final drive ratio
Carfolio.com ID115324
Production total 1
Model code
Model family Concept
RAC rating 33.8
Insurance classification No information available
Tax band No information available
1951 Buick XP-300 added 2003-10-27.
Last modified 2013-02-28.