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Lagonda 4 litre Rapide
 

There was then no Lagonda made for nearly four years until the Motor Show of 1961 when the 4 litre Rapide was introduced (96 x 92mm, 3995cc). This was virtually a four door DB4 Aston Martin and had nothing in common with earlier models. The only major difference from the DB4 apart from the styling lay in the De Don rear suspension, different carburation and the availability of automatic transmission. 55 were made in 1962-1964.

Wheelbase 2896 mm 114 in  
Track front 1410 mm 55.5 in  
rear 1410 mm 55.5 in  
Length 4966 mm 195.5 in  
Width 1765 mm 69.5 in  
Height 1422 mm 56 in  
Ground clearance 152 mm 6 in  
Kerb weight 1715 kg 3781 lb  
Fuel capacity 75
litres
16.5
UK Gal
19.8
US Gal
engine
Manufacturer Aston-Martin
Type S-6
DOHC
12 valves total
2 valves per cylinder
Bore stroke 96.00mm 92.00mm
3.78 in 3.62 in
Bore/Stroke ratio 1.04
Displacement 3996 cc
(243.851 cu in)
Unitary capacity 666 cc/cylinder
Compression ratio 8.25:1
Fuel system 2 So carbs
Aspiration Normal
Max. output
(Net)
239.3 PS (236.0 bhp) (176 kW)
@5000 rpm
Max. torque
(Net)
359.0 Nm (265 lbft) (36.6 kgm)
@4000 rpm
Coolant Water
Specific output 59.1 bhp/litre
0.97 bhp/cu in
Specific torque 89.84 Nm/litre
Power-to-weight 137.61 bhp/ton
chassis
Engine location Front
Engine alignment Longitudinal
Suspension Front I.CS.W.
Rear dD.TB.RA.WL.
Brakes F/R Di/Di
Transmission 3A
Drive RWD
Top gear ratio 1.00
Final drive ratio 3.77