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Event: 12 Hours of Sebring International Grand Prix of EnduranceDate: 18.3.1989
Track: Sebring International Raceway (United States), 6.614 kmsOrganiser: unknown

Sebring 12 Hours
Weather:warm, sunny, dry
Start time:unknown
Grid:unknown
Distance:12 hours
Attendance:30000
Entered:68
Practiced:60
Qualified:53
Started:53
Finished:32
Classes:PractStart
IMSA GTP1413
IMSA GTP Lights1010
IMSA GTO1514
IMSA GTU1716
Photo GalleryEntered CarsTechnical DataAppearanceRace ResultsGridQualifyingLap Times
Race notes:
1 full-course caution for 29 minutes
Pre-race sessions:
2 qualifying sessions held for a total of 60 minutes on 16-17/3
5 non-qualifying practice sessions held for a total of 300 minutes on 15-17/3
20 minute pre-race warm-up held
Winners:
Overall:83Nissan GTP ZX-TRobinson / Brabham / Luyendyk
IMSA GTP Lights:55Spice SE86CL Pontiac Firebird GTPLesnett / Marvin
IMSA GTO:11Lincoln Mercury Cougar XR-7Dallenbach, Jr. / Schroeder
IMSA GTU:74Pontiac FieroRobinson / Kendall / Unser
Leaders:
laps 1-69:83Nissan GTP-ZXT
laps 70-73:61Jaguar XJR-9
laps 74-88:83Nissan GTP-ZXT
laps 89-98:61Jaguar XJR-9
laps 99-330:83Nissan GTP-ZXT
Fastest Laps:
Overall:84Nissan GTP ZX-TArie Luyendyk (NL)1:59.7760198.8023 km/hlap 3
IMSA GTP Lights:4Spice SE88P BuickScott Schubot (USA)2:15.8330175.3010 km/hlap 21
IMSA GTO:75Nissan 300ZXJohn Morton (USA)2:14.7930176.6545 km/hlap 207
IMSA GTU:71Mazda RX-7Amos Johnson (USA)2:26.7010162.3152 km/hlap 147
Pole Positions:
Overall:83Nissan GTP ZX-TGeoff Brabham (AUS)1:55.8220205.5889 km/h
IMSA GTP Lights:4Spice SE88P BuickScott Schubot (USA)2:10.1810182.9132 km/h
IMSA GTO:16Lincoln Mercury Cougar XR-7Pete Halsmer (USA)2:11.7840180.6875 km/h
IMSA GTU:68Porsche 911 CarreraLuis Mendez (DR)2:24.1410165.1976 km/h
Notes of interest:
Top makes by numbers:Porsche (11), Mazda (7), Chevrolet (7), Nissan (5), Spice (5)
Top engines by numbers:Porsche (12), Mazda (10), Chevrolet (8), Buick (6), Nissan (5)
Top car types by numbers:Mazda RX-7 (7), Porsche 962 (5), Chevrolet Camaro (5)
Driver nationalities:USA (109), CDN (9), PR (5), I (4), F (4), GB (3), NL (3), AUS (2)
Most used colours:white (36%), red (23%), blue (16%), yellow (11%)
Engine positions:mid-engined (45%), front-engined (43%), rear-engined (12%)
Average engine size:3488 cc (with regard to 16% turbocharged cars and 18% cars with rotary engine an applicable size is 4378 cc)
Oldest known drivers:Dick Greer (57), Martino Finotto (56), John Gunn (50)
Youngest known drivers:Butch Leitzinger (20), John Jones (24), Dave Russell (24)
Female drivers:Linda Ludemann

Official Race Programme:

CoverEntry ListScheduleTrack Map
Programme Cover - Sebring 12 Hours 1989Entry list is not available.Schedule of events is not available.Track map is not available.