Daren Mk.3
| Designer(s) | John Green | ||||||||||||||
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| Production | 6 (1971–1973) | ||||||||||||||
| Predecessor | Daren Mk.2 (Daren) Jerboa SP (John Green) | ||||||||||||||
| Successor | Daren Mk.4 (Direct) Daren Mk.6 (Spiritual) | ||||||||||||||
| Technical specifications | |||||||||||||||
| Chassis | BRM P578 | ||||||||||||||
| Length | 4,500 millimetres (180 in) | ||||||||||||||
| Width | 2,150 millimetres (85 in) | ||||||||||||||
| Height | 790 millimetres (31 in) | ||||||||||||||
| Wheelbase | 2,098 millimetres (82.6 in) | ||||||||||||||
| Engine | BRM V8 2,136 cubic centimetres (130.3 cu in; 2.136 L) 71.08 by 50.8 millimetres (2.798 in × 2.000 in) Longitudinal | ||||||||||||||
| Transmission | Hewland FT200 5-speed Manual | ||||||||||||||
| Power | 291 brake horsepower (295 PS; 217 kW) at 12,000 rpm 280 newton-metres (210 lbf⋅ft) at 9,500 rpm | ||||||||||||||
| Weight | 1,180 pounds (540 kg) | ||||||||||||||
| Competition history | |||||||||||||||
| Notable drivers |
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The Daren Mk.3 and Mk.4 are the third and fourth sports prototype racing cars built by Daren Cars (now Hydrautug).
History
Daren Cars was founded in 1967, and first produced a car in the Mk.1 in 1968. John Green built the car for racing based on a Merlyn MK11 Formula Ford. The car would be so successful, winning 4 races, that John Green started getting requests to build more Mk.1s, and as such the Mk.2 was born, with only one Mk.1 ever being made. The cars were made with "Martin" branded Cosworth FVD engines, with 8 being made in 1968-1970. In 1970, Daren started development for the Mk.3 as based on the Mk.2, but now fitted with a BRM V8. Six Mk.3s would be built, with an original selling price of £2,500 as a rolling chassis (no engine or gearbox). The BRM V8 used in the car is bored out from stock 2.58 mm (0.102 in), upping the total displacement to 2,136 cc (130.3 cu in) for a total bore and stroke of 71.08 mm × 50.8 mm (2.798 in × 2.000 in).[1][2][3]
| Designer(s) | John Green | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Production | 1 | ||||||||||||
| Predecessor | Daren Mk.3 | ||||||||||||
| Successor | Daren Mk.5 | ||||||||||||
| Technical specifications[4] | |||||||||||||
| Chassis | Daren Mk.3, which is derived from the BRM P578 | ||||||||||||
| Length | 3,380 millimetres (133 in) | ||||||||||||
| Width | 2,000 millimetres (79 in) | ||||||||||||
| Height | 850 millimetres (33 in) | ||||||||||||
| Wheelbase | 2,098 millimetres (82.6 in) | ||||||||||||
| Engine | Cosworth FVC 1,790 cubic centimetres (1.8 L) Inline 4, Longitudinally mounted NA MR Layout | ||||||||||||
| Transmission | Hewland FT200 5-speed Manual transmission | ||||||||||||
| Power | 258 metric horsepower (254 hp; 190 kW) @ 8,750 rpm 214 newton-metres (157.8 lb⋅ft) @ 6,500 rpm | ||||||||||||
| Weight | 510 kilograms (1,124 lb) | ||||||||||||
| Tyres | Michelin | ||||||||||||
| Competition history | |||||||||||||
| Notable entrants | Daren | ||||||||||||
| Notable drivers | Martin Raymond | ||||||||||||
| Debut | 1974 Vila Real Grand Prix | ||||||||||||
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Daren Mk.4
In 1973, with a lack of orders, and Daren would shut down. The Daren Mk.4 was an unofficial designation of an evolution model of the Daren Mk.3, built by Martin Raymond. The car would debut at the 1974 Vila Real endurance race but would suffer a crash and would not be rebuilt. The car would be fit with a Cosworth FVC. The car would be fitted with a similar body to that of the Mk.3, but it would be smaller by 1.12 m (44.1 in). However this smaller body was made of Aluminium instead of Fiberglass, which meant it would only be 25 kg (55 lb) lighter instead of the projected 60 kg (132 lb) that Martin Raymond was promising.[5][6][4][1]
References
- ^ a b "About HydrauTug, makers of airplane ground handling tugs and its origin in Daren Cars". darencars.co.uk. Retrieved 2025-01-14.
- ^ Branch, Ben (2020-03-20). "For Sale: A Barn Fresh Daren-BRM Mark III Prototype Race Car - Targa Florio Veteran". Silodrome. Retrieved 2025-01-14.
- ^ "Daren Mk.3 - Racing Sports Cars". www.racingsportscars.com. Retrieved 2025-01-14.
- ^ a b "Daren Mk.4 specs, performance data". FastestLaps.com. Retrieved 2025-03-09.
- ^ "Daren Mk.4 - Racing Sports Cars". www.racingsportscars.com. Retrieved 2025-03-09.
- ^ "Motorsport Memorial -". www.motorsportmemorial.org. Retrieved 2025-03-09.