BIRKIN S3 Specifications

Body and Chassis

Aluminum clad tube steel chassis
Fiberglass nosecone and mudguards
Rack and pinion steering
Wheel base 2214mm
Front track 1500mm
Rear track 1490mm
Overall length 3110mm
Overall height 1040mm (to roll bar 1060mm)
Width 1575mm
Ground clearance 110mm
Dry weight 570kg


4 wheel disc brakes
Dual circuit hydraulic
Front- 257 mm diameter, ventilated discs with 4 pot calipers
Rear-229mm diameter, solid discs with single pot calipers and handbrake mechanism.
4 piston front brake calipers
Alloy pedal box, position adjustable
Fluid level warning.


Wide track front suspension.
Independent, elliptical double wish bone adjustable anti roll bar.
Dampers- coil over adjustable hydraulic dampers.
Full independent rear suspension
Inboard front anti roll bar
Wheels and tyres: 15”/ 7j 35 Offset 100 PCD
195/50/15 tyres,
Optional spare wheel.

Fuel tank

Baffled 40 litre capacity , aluminium


Speedometer, tachometer, ammeter, oil pressure, temperature and fuel guage.


Bucket seats, adjustable driver’s seat, black vinyl upholstery, carbon fibre dash board, centre and door cars optional.
3 point retractable harness.
Heated windscreen


5 speed manual Ford type 9
1st 2.50:1
2nd 1.81:1
3rd 1.26:1
4th 1.00:1
5th 0.87:1
Reverse 3.87:1
Differential Subaru
Final drive ratios:


Ford Duratec from 140 bhp to 250 bhp