Go to Ultimatecarpage.com

Car search: Quick Advanced 
 sport Ultimatecarpage.com  > Cars by brand  > Italy  > Alfa Romeo
Racing cars  > Other Sportscars
     8C 2900B Le Mans Berlinetta
Cars statistics: 4674 cars, 413 makes, 34492 images; Events statistics: 196 reports, 36409 images; Forum statistics: 83,467 members, 40,991 topics; more...


  Alfa Romeo 8C 2900B Le Mans Berlinetta
 

Alfa Romeo 8C 2900B Le Mans Berlinetta Alfa Romeo 8C 2900B Le Mans Berlinetta Alfa Romeo 8C 2900B Le Mans Berlinetta Alfa Romeo 8C 2900B Le Mans Berlinetta Alfa Romeo 8C 2900B Le Mans Berlinetta Alfa Romeo 8C 2900B Le Mans Berlinetta
Alfa Romeo 8C 2900B Le Mans Berlinetta Alfa Romeo 8C 2900B Le Mans Berlinetta Alfa Romeo 8C 2900B Le Mans Berlinetta Alfa Romeo 8C 2900B Le Mans Berlinetta Alfa Romeo 8C 2900B Le Mans Berlinetta Alfa Romeo 8C 2900B Le Mans Berlinetta
Click here to save all images    Image credits: Wouter Melissen 

Click here to download printer friendly version At 10 am on the Sunday morning of the 1938 24 Hours of Le Mans, Clemente Biondetti and Raymond Sommer held a commending 11-lap lead over their closest rival in their startling Alfa Romeo 8C 2900B Le Mans Coupe. At well over an hour and 160 km (100 miles) this was the largest lead at Le Mans ever but could not be converted into a victory due to a succession of mechanical problems. After those disastrous final hours of the race, the car was shipped back to the Alfa Corse workshop and not raced again. After a lengthy spell in private hands, the car was reacquired by Alfa Romeo and is today proudly displayed in the beautiful 'Museo Storico' museum.

The chassis used for the unique Le Mans special was one of five 8C 2900Bs modified for racing early in 1938. Although offered to customers as a road car, the 8C 2900B was effectively a road going version of Alfa Romeo's Grand Prix cars and nearly identical to the 8C 2900As that had convincingly won the 1936 and 1937 editions of the Mille Miglia. Built around a steel ladder frame, the car featured independent suspension at both ends. The front end consisted of twin trailing arms, while at the rear single radius arms and swing axles were used. What set the five competition cars apart from the 'regular' production cars was the rear of the frame, which was bend further down to make the use of a quick-lift jack possible.

Giving the 8C 2900 its name was the beautiful, Vittorio Jano designed straight eight engine with a displacement of just over 2.9 litre. It represented the ultimate road going development of the engine first introduced in the all-conquering 8C 2300 of 1931. Constructed almost entirely from lightweight alloys, the 8C engine consisted of two blocks of four cylinders. As a result the double overhead camshafts were driven from the middle of the engine. In this configuration the length of the camshafts was cut in half, making them less prone to flexing. With the help of two superchargers, one for each block of cylinders, the 8C 2900 engine produced 180 bhp in road trim and a hefty 220 bhp in competition specification.

Another advanced feature of the 8C 2900 was the use of a gearbox that was fitted in unit with the rear differential. This 'transaxle' helped shift some of the weight towards the rear of the understandably nose heavy car. The competition cars also used a sizeable petrol tank that was mounted behind the driver's seat, on top of the rear axle. Like most high performance cars of the period, the 8C 2900 featured hydraulic drum brakes. The rolling chassis of the car weighed in at around 850 kg (1874 pounds). The coach-builder of choice for the 1938 cars was Touring of Milan, who produced light and very slippery bodies.

It is believed that all five 8C 2900B competition chassis were originally clothed by Touring with open bodies for the Mille Miglia. Quite in contrast with the earlier 'cycle fender' bodies used on the competition 2900s, the MM Spiders featured full width bodies that looked very slippery. Four cars were entered in the gruelling 1000 mile road race and Alfa Corse recorded a clean sweep of the podium. The winning car of Clemente Biondetti and Ado Stefani completed the race with a startling average of 135 km/h (84 mph). The success in the Mille Miglia prompted Alfa Romeo to prepare one car for the 24 Hours of Le Mans, a race the 8C 2300 won four years running between 1931 and 1934.

The Spider body was stripped from the chassis and replaced with an even more aerodynamic coupe body. Designed by Touring's Carlo Felice Anderloni, the shape was very futuristic with its front fenders that were an integral part of the body and not separate as on most contemporary road and racing cars. The large panels directly behind the front wheels could be removed to allow the mechanics better access to the engine. The 'fastback' roof was also a departure of common practice and gave the car a truly unique look. All this work was done to optimise the 8C 2900 for the long straights at Le Mans. In Italy the coupe received the nickname 'Soffio di Satana' or 'devil's breath'.

Biondetti's and Sommer's dominating performance in the race showed that all this preparation was not for naught. Their life was made an even easier by the retirement of several of the quickest Delahayes and Talbot Lagos. Not long after Sommer set the fastest lap of the race at nearly 155 km/h (96 mph), the right front tire blew on the Mulsanne straight. Despite traveling at around 210 km/h (130 mph), the Frenchman managed to keep the virtually uncontrollable car out of the barriers. One of the cords of the tire ripped the fender apart, requiring repairs. Still with a healthy lead, Biondetti went back out. Unfortunately the car ground to a halt after only a few laps with either a broken valve or gearbox failure.

There were still several hours to go when the Le Mans Berlinetta retired but it had nevertheless completed more laps than the Delahaye that eventually finished fourth. Although there are different reports on what broke on the car, most agree that the blow-out was the cause of the problem. Sommer most likely attempted to slow the car down without touching the brakes, which undoubtedly would have ended in disaster. While slowing down the engine probably over-revved causing damage to either the gearbox or one of the valves, or both. The result was the same; an almost certain Le Mans win slipped through the team's fingers.

After the car was completely repaired, it was sold to a gentleman in Rome. It eventually disappeared from the radar until it was discovered in Rome during the late 1960s by Count Giovanni Livorno and Corrado Cupellini. The Le Mans Berlinetta was complete and original condition but did need some work to restore it to its former glory. With a fresh coat of paint, it was sold to the famous British broker Colin Crabbe. The subsequent custodian of the unique machine was Lord Doune and finally it passed into the hands of Mike Sparken and Caroll Spagg. Under their care, the car was carefully restored to full running order.

Understandably, Alfa Romeo was more than a little interested in reacquiring the ill-fated but still hugely impressive machine. A most unusual trade was agreed in the late 1980s; the 8C 2900B Le Mans Berlinetta for one of the Museo Storico's 158 'Alfetta' Grand Prix cars. Since then the car has been prominently displayed in the museum but also made numerous outings. In recent years it has been repainted from a rather bright red to a more period correct deep red. In this configuration, it was demonstrated at the 2010 Goodwood Festival of Speed, where the company's centenary was celebrated. One of the runs up the hill was made by Goodwood supremo Lord March with his daughter in the passenger seat.

Article by Wouter Melissen, last updated on October 18, 2010

Add your comments on the Alfa Romeo 8C 2900B Le Mans Berlinetta

 2900B  
BMW63
10-19-2010
You've truly captured the essence of this wonderful Berlinetta. Thank you Wouter and Ed.

Cheers
 Alfa 8C 2900B  
edmcd
10-18-2010
One of the most interesting parts of the story of this Alfa is how Mike Sparken spent years pursuing Alfa Romeo attempting to get an Alfetta 158. He negotiated with a number of people over many years and waited months each time to get an answer back.He had first seen the Alfetta at Monza in 1951 and had vowed to have one some time in the future.

A new manager of the museum had been appointed, Signor Tralamontana, and one day when Mike Sparken visited Arese, he took the 2900 to show him. Signore Cattaneo had been supporting Mike's case for many years and said to Tralamontana that Mike wanted to trade this car for a 158. Tralamontana didn't know what a 158 was and she told him 'an old racing car'. He said she should 'look into it' and nothing happened for many months. She reminded him some time later and he said 'Yes, ok, if he wants an old racing car we can do that'.

Alfa Romeo never went out hunting for the ex-Le Mans car...it came to them. The museum manager knew relatively little about history but he recognised the 2900 was an interesting car, but certainly it was not on Alfa's agenda to go find this car.

Mike Sparken and Jim Stokes went to deliver the 2900 and collect the 158 and as soon as they had it packed up to go, they left as soon as possible, before anyone could change their minds. Many people at Alfa Romeo have since regretted allowing the only 158 ever to get into private hands get away from them. But it is a good thing they did, as they were unlikely to have restored the 158/159 to the stunning, race-worthy condition it is in today.

Ed McDonough
     
General specifications
Country of origin Italy
Chassis number 412033
Numbers built one-off
Produced in 1938
Body design Touring

Engine
Configuration Straight 8
Location Front, longitudinally mounted
Construction alloy block and head
Displacement 2.905 liter / 177.3 cu in
Bore / Stroke 68.0 mm (2.7 in) / 100.0 mm (3.9 in)
Compression 6.3:1
Valvetrain 2 valves / cylinder, DOHC
Fuel feed 2 Weber Carburettors
Aspiration Twin Roots-Type Superchargers
Power 220 bhp / 164 KW @ 5800 rpm
BHP/Liter 76 bhp / liter

Drivetrain
Chassis aluminium body on a welded light-gauge box-section frame
Front suspension trailing arms, coil springs, tubular shock absorbers
Rear suspension swing axles, radius arms, transverse semi-elliptic leaf springs, tubular shock absorbers
Steering worm-and-sector
Brakes hydraulic drums, all-round
Gearbox 4 speed Manual
Drive Rear wheel drive

Dimensions
Weight 1100 kilo / 2425.1 lbs
Wheelbase / Track (fr/r) 2799 mm (110.2 in) / 1349 mm (53.1 in) / 1349 mm (53.1 in)

Performance figures
Power to weight 0.2 bhp / kg
Top Speed 245 km/h (152 mph)

Resources
Suggested reading
  • Alfa Romeo Tutte le Vetture Dal 1910, by Luigi Fusi
  • The Immortal 2.9, by Simon Moore
Related cars
Related articles
Useful links