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Louis Rosier
Louis Rosier.jpg
Born (1905-11-05)5 November 1905
Chapdes-Beaufort, France
Died 29 October 1956(1956-10-29) (aged 50)
Nationality France French
Relatives Jean-Louis Rosier (son)
Formula One World Championship career
Active years 19501956
Teams Talbot-Lago, Ferrari, Maserati (mostly as privateer)
Entries 38
Championships 0
Wins 0
Podiums 2
Career points 18
Pole positions 0
Fastest laps 0
First entry 1950 British Grand Prix
Last entry 1956 German Grand Prix

Louis Claude Rosier (5 November 1905 in Chapdes-Beaufort – 29 October 1956 in Neuilly-sur-Seine) was a racing driver from France.

Career highlights

He participated in 38 Formula One World Championship Grands Prix, debuting on 13 May 1950. He achieved 2 podiums, and scored a total of 18 championship points. He won the Dutch Grand Prix twice in consecutive years between 1950 and 1951, the Circuit d'Albi, Grand-Prix de l'Albigeois and the 24 Hours of Le Mans with his son Jean-Louis Rosier. Rosier owned the Renault dealership of Clermont-Ferrand.

In 2016, in an academic paper that reported a mathematical modeling study that assessed the relative influence of driver and machine, Rosier was ranked the 19th best Formula One driver of all time.

Formula One and sports car competition

Rosier finished 4th at Silverstone in a Talbot, in October 1948. The event was the RAC International Grand Prix, the first grand prix to be held in England since 1927. He drove a 4.5-liter, unsupercharged Talbot-Lago to 3rd place at the 1949 British Grand Prix at Silverstone. He was a lap behind the winner with a speed of 76.21 miles per hour (122.65 km/h). Rosier won an International Grand Prix at Spa-Francorchamps in June 1949. He piloted a Talbot in the 500-kilometre (310 mi), 32-lap event, achieving a time of 3 hours, 15 minutes, and 17 seconds. He assumed the lead after 23 laps, coming across the finish line ahead of Luigi Villoresi. Rosier won the 1950 24 Hours of Le Mans in a blue Talbot. He teamed up with his son Jean-Louis Rosier who only drove two laps during the race, which means Louis won the race practically by himself. He finished one lap ahead of Pierre Meyrat who drove a car of the same marque. The Rosiers covered 256 laps, 2,163 miles (3,481 km), in 23:54:2.2. Rosier captured the Grand Prix d'Albi in Albi, France in May 1953. He drove a Ferrari, covering the 18 laps of the finals, 160 kilometres (99 mi), in 56:36:8. He averaged 160 kilometres per hour (99.42 mph). Rosier placed second in a Ferrari at a Grand Prix in Aix-Les-Bains, in July 1953. His time was 2:24:48.1. In April 1956 Rosier finished 4th in a Maserati, in a 201-mile race at Aintree. Stirling Moss drove a blue Maserati to victory in the 67-lap event for Formula One cars, with an average speed of 84.24 miles per hour (135.57 km/h). Rosier finished 5th at the 1956 German Grand Prix behind the wheel of a Maserati.

Écurie Rosier

Louis Rosier was the owner and manager of a racing team, the "Ecurie Rosier". Originally set up to run Rosier's Talbot-Lago T26 (for either Rosier or a guest driver), and later evolved to an actual team running 250Fs and finally Ferrari 500s simultaneously for Rosier and another driver. Throughout the 1950s, Écurie Rosier provided drives in Formula One for Henri Louveau, Georges Grignard, Louis Chiron, Maurice Trintignant, André Simon and Robert Manzon.

Circuit Louis Rosier

Louis Rosier was one of the key sponsors of the Charade race track. After World War II, Jean Auchatraire (president of the racing section of the local Automobile Club) and Louis Rosier promoted the idea of a race track around Clermont-Ferrand.

A set of preliminary designs were drawn up for a circuit of a length between 4 and 6 km, meeting the latest safety regulations with large parking capacity at a location just outside the city limits on a hilly landscape.

The Le Mans disaster (death toll: 84 lives) on 11 June 1955 brought the project to a halt. All race events were postponed. No further events were allowed to take place on temporary urban tracks. Racing events were only to be allowed on dedicated race-tracks, providing that they met a new set of rules. In Clermont-Ferrand, as was the case for many other new race tracks, new safety devices were being imagined and discussed, reviewed and assessed. But the concept of a "mountain race track" moved forward. It would be the only one of its kind in France.

Auchatraire, Rosier and Raymond Roche (the manager of Reims-Gueux race track) worked together to get the project accepted by the political community before searching for funding. But Rosier was killed at Montlhéry on 26 October 1956 and would not witness his project come to fruition. The racetrack was opened on 27 July 1958, with the name of its famous founder "Circuit de Charade Louis Rosier". Soon after, several champions participated in racing events on the track, each of them, including Stirling Moss, making very positive statements about the track and its surrounding.

Car manufacturer

Rosier's Renault dealership in Clermont-Ferrand was one of the largest Renault dealerships in France. Rosier's dealership also sold other industrial and farming equipment. The building housing this important business has been destroyed.

In 1951, Louis Rosier designed a prototype based on the 4CV Renault.

In 1953, using the concept of a barchetta that he raced at Le Mans, Rosier, together with Italian coachbuilder Rocco Motto, designed a cabriolet, still using 4CV Renault sub assemblies. This model was built in a quantity of about 200 units by Brissonneau. It was even introduced at a car show in New York.

Some time later he designed a roadster using Renault Frégate elements with an aluminum body developed by Rocco Motto, on a multi-tubular frame. The engine was seriously revised, the body was lightened, the results was an interesting 950 kg for 80 hp.

Death

On 7 October 1956 Louis Rosier was competing in the Coupe du Salon sports car race at Montlhéry in a Ferrari 750 Monza. During the race he crashed, sustaining head injuries. Three weeks later, on 29 October 1956, Rosier succumbed to the injuries received in the crash.

Racing record

Post WWII Grandes Épreuves results

(key)

Year Entrant Chassis Engine 1 2 3 4 5
1947 L. Rosier Talbot Spéciale Talbot 4.0 L6 SUI
15
BEL
6
ITA FRA
4
1948 L. Rosier Talbot-Lago T26C Talbot 23CV 4.5 L6 MON
Ret
SUI
Ret
FRA
6
ITA
6
1949 Ecurie Rosier Talbot-Lago T26C Talbot 23CV 4.5 L6 GBR
3
SUI
6
FRA
4
ITA
Ret
Automobiles Talbot-Darracq BEL
1
Source:

Complete Formula One World Championship results

(key) (Races in bold indicate pole position; Races in italics indicate fastest lap)

Year Entrant Chassis Engine 1 2 3 4 5 6 7 8 9 WDC Points
1950 Ecurie Rosier Talbot-Lago T26C Talbot 23CV 4.5 L6 GBR
5
MON
Ret
500 ITA
4
4th 13
Automobiles Talbot-Darracq Talbot-Lago T26C-DA SUI
3
BEL
3
FRA
Ret
Charles Pozzi Talbot-Lago T26C FRA
6
1951 Ecurie Rosier Talbot-Lago T26C-DA Talbot 23CV 4.5 L6 SUI
9
500 BEL
4
FRA
Ret
GBR
10
GER
8
ITA
7
ESP
7
13th 3
1952 Ecurie Rosier Ferrari 500 Ferrari 500 2.0 L4 SUI
Ret
500 BEL
Ret
FRA
Ret
GBR
DNA
GER NED ITA
10
NC 0
1953 Ecurie Rosier Ferrari 500 Ferrari 500 2.0 L4 ARG 500 NED
7
BEL
8
FRA
8
GBR
10
GER
10
SUI
Ret
ITA
16
NC 0
1954 Ecurie Rosier Ferrari 500/625 Ferrari 625 2.5 L4 ARG
Ret
500 BEL FRA
Ret
GBR
Ret
GER
8
SUI NC 0
Officine Alfieri Maserati Maserati 250F Maserati 250F1 2.5 L6 ITA
8
Ecurie Rosier ESP
7
1955 Ecurie Rosier Maserati 250F Maserati 250F1 2.5 L6 ARG MON
Ret
500 BEL
9
NED
9
GBR ITA NC 0
1956 Ecurie Rosier Maserati 250F Maserati 250F1 2.5 L6 ARG MON
Ret
500 BEL
8
FRA
6
GBR
Ret
GER
5
ITA 19th 2
Source:

Complete Formula One non-championship results

(key) (Races in bold indicate pole position; Races in italics indicate fastest lap)

Year Entrant Chassis Engine 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
1950 Ecurie Rosier Talbot-Lago T26C Talbot 23CV 4.5 L6 PAU
3
RIC SRM PAR
Ret
EMP BAR
DNA
JER ALB
1
NED
1
NAT
DNA
NOT ULS PES
2
STT INT GOO PEN
Ret
1951 Ecurie Rosier Talbot-Lago T26C Talbot 23CV 4.5 L6 SYR
5
PAU
2
RIC SRM
Ret
BOR
1
INT
5
PAR
3
ULS
7
SCO NED
1
ALB
2
PES
2
BAR
4
GOO
1952 Ecurie Rosier Ferrari 500 Ferrari 500 2.0 L4 SYR VAL RIC LAV PAU
2
IBS MAR
Ret
AST INT ELÄ NAP
NC
EIF PAR
3
MNZ LAC ESS MAR
5
SAB CAE
3
COM
Ret
NAT BAU
3
MOD CAD
1
SKA MAD AVU JOE NEW
Ferrari 375 Ferrari 375 4.5 V12 ALB
1
FRO ULS
4
DMT
5
1953 Ecurie Rosier Ferrari 500 Ferrari 500 2.0 L4 SYR PAU
5
LAV AST BOR
Ret
INT
10
ELÄ NAP
5
ULS WIN FRO COR EIF LAC
2
BRI CHE SAB
1
NEW CAD
4
RED SKA LON MOD MAD JOE CUR
Ferrari 375 Ferrari 375 4.5 V12 ALB
1
PRI ESS MID ROU
7
CRY AVU USF
1954 Ecurie Rosier Ferrari 625 Ferrari 2.5 L4 SYR PAU
6
LAV BOR
Ret
INT
6
BAR
Ret
CUR ROM
5
FRO COR BRC CRY ROU
8
CAE
5
AUG COR OUL RED PES
Ret
JOE CAD
3
BER
Ret
Maserati 250F Maserati 250F1 2.5 L6 GOO
7
DTT
6
1955 Ecurie Rosier Maserati 250F Maserati 250F1 2.5 L6 VAL
6
PAU
7
GLO BOR
Ret
INT
5
NAP ALB
2
CUR COR LON DRT
3
RED
7
DTT
Ret
OUL AVO
Ret
SYR
Ret
1956 Ecurie Rosier Maserati 250F Maserati 250F1 2.5 L6 BUE GLV
7
SYR AIN
4
INT
6
NAP 100 VNW CAE
Ret
BRH
Source:

Complete 24 Hours of Le Mans results

Year Team Co-Drivers Car Class Laps Pos. Class
Pos.
1938 Italy Luigi Chinetti France Robert Huguet Talbot T150SS Coupe 5.0 81 DNF
1949 France Ecurie Rosier France Jean-Louis Rosier Talbot-Lago Spéciale S5.0 21 DNF
(Fanbelt)
1950 France Louis Rosier
(private entrant)
France Jean-Louis Rosier Talbot-Lago T26 GS Biplace S5.0 256 1st 1st
1951 France Louis Rosier
(private entrant)
Argentina Juan Manuel Fangio Talbot-Lago T26 GS Biplace S5.0 92 DNF
(Oil tank)
1952 France Ecurie Rosier France Maurice Trintignant Ferrari 340 America Spyder S5.0 ? DNF
(Clutch)
1953 France Automobiles Talbot-Darracq S.A. France Élie Bayol Talbot-Lago T26 GS Spyder S5.0 37 DNF
(Transmission)
1954 Italy Scuderia Ferrari France Robert Manzon Ferrari 375 Plus S5.0 177 DNF
(Transmission)
1955 France Ecurie Rosier France Georges Grignard Talbot-Lago T26 GS Spyder S5.0 DNS
(Engine)
1956 France Automobiles Talbot France Jean Behra Talbot-Lago Sport S3.0 220 DNF
(Transmission)
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