The 12 Hours of Sebring, The Coca-Cola Classic, was the third round of the 1983 IMSA GT Championship and was held at the Sebring International Raceway, on March 19, 1983. Victory overall went to the No. 9 Personalized Autohaus Porsche 934 driven by Wayne Baker, Jim Mullen, and Kees Nierop.

Race results Class winners in bold.

Pos Class No Team Drivers Car Laps 1 GTO 9 Personalized Autohaus Wayne Baker Jim Mullen Kees Nierop Porsche 934 231 2 GTP 5 Bob Akin Motor Racing Bob Akin Dale Whittington John O'Steen Porsche 935 231 3 GTP 86 Bayside Disposal Racing Hurley Haywood Al Holbert Porsche 935 229 4 GTO 61 Vista Racing Don Courtney Luis Sereix Brent O'Neill Chevrolet Monza 227 5 GTP 22 Nimrod Racing Reggie Smith Lyn St. James Drake Olson Nimrod NRA/C2 224 6 GTU 66 Mike Meyer Racing Jack Dunham Jeff Kline Jon Compton Mazda RX-7 224 7 GTO 65 Manuel Villa Luis Gordillo Manuel Villa Chiqui Soldevilla Porsche 911 Carrera RSR 224 8 GTU 82 Trinity Racing Joe Varde Jack Baldwin John Casey Mazda RX-7 223 9 GTO 01 Marketing Corporation of America John Morton Tom Klausler Ford Mustang 222 10 GTO 35 Pegasus Racing Al Leon Paul Gilgan Wayne Pickering Porsche 911 Carrera RSR 222 11DNF GTP 10 Cooke Racing Ralph Kent-Cooke Jim Adams Josele Garza Lola T600 221 12 GTP 94 Henn's Swap Shop Racing Don Whittington Bill Whittington Porsche 935 218 13 GTP 3 Grid Motor Racing Skeeter McKitterick Milt Minter Grid S1 216 14 GTU 37 Burdsall/Welter Peter Welter Tom Burdsall Nort Northam Mazda RX-7 216 15 GTU 23 Roe/Selby Tim Selby Earl Roe Porsche 911 Carrera RSR 210 16 GTO 83 R&H Racing Rainer Brezinka Rudy Bartling Roger Schramm Porsche 911 Carrera RSR 204 17 GTU 92 Kent Racing Lee Mueller Terry Visger Mazda RX-7 204 18 GTU 63 RGP 500 Racing Jim Downing John Maffucci Chuck Ulinski Mazda RX-7 204 19 GTU 11 Paul Goral Paul Goral Larry Figaro Peter Uria Porsche 911 202 20 GTO 69 Hiram Cruz Racing Mandy Gonzalez Hiram Cruz Porsche 934 201 21DNF GTO 7 Racing Beat Pete Halsmer Rick Knoop Mazda RX-7 199 22 GTU 90 901 Shop Mike Schaefer Doug Zitza Jack Refenning Porsche 911 SC 198 23 GTO 06 Juan Lopez Juan Lopez Luis Mendez Porsche 911 Carrera 192 24 GTO 89 Taca El Salvador "Jamsal" Eduardo Barrientos Eduardo Galdamez Porsche 911 Carrera RSR 188 25 GTU 27 Scuderia Rosso Jim Fowells Ray Mummery Steve Potter Mazda RX-7 185 26 GTO 14 Oftedahl Racing Carl Shafer Carlos Ramirez Mike Meldeau Pontiac Firebird 185 27 GTU 68 Jack Rynerson Jack Rynerson Van McDonald Chris Wilder Porsche 911 183 28 GTO 57 Dave Heinz Racing Dave Heinz Jerry Thompson Paul Gentilozzi Chevrolet Camaro 181 29 GTO 03 Bob's Speed Products Bob Lee Timothy S. Lee Gary Myers Ford Maverick 180 30 GTU 91 Bryant & Graham Racing Charles W. Bryant Alex Priest Mike Guido BMW 2002 178 31DNF GTU 93 Foreign Exchange John Higgins James King Chip Mead Porsche 911 175 32 GTU 30 Case Racing Ron Case Craig Case Dave Pannacione Porsche 911 173 33DNF GTU 60 Team Morrison Jim Cook Steve Dietrich Al Bacon Mazda RX-7 168 34 GTU 51 Red Roof Inns Doug Carmean Don Herman Mazda RX-7 167 35 GTO 58 Brumos Racing Deborah Gregg Kathy Rude Bonnie Henn Porsche 924 Carrera GTR 165 36 GTO 96 Weld Fixturing Phil Byrd Freddy Baker Robert Kirby Porsche 911 Carrera RSR 162 37 GTU 42 Gary Wonzer Gary Wonzer Bill Bean Buzz Cason Porsche 911 162 38DNF GTU 95 Ned Skiff Ned Skiff Jim Leo Renault 12 159 39DNF GTO 19 Van Every Racing Lance van Every Ash Tisdelle Porsche 911 Carrera RSR 153 40DNF GTO 02 Marketing Corporation of America Ronnie Bucknum John Bright Ford Mustang 153 41 GTO 4 Stratagraph Billy Hagan Gene Felton Sam Moses Lloyd Frink Chevrolet Camaro 153 42 GTU 04 Di Lella Racing Vince DiLella Manuel Cueto Porsche 911 152 43 GTO 79 Whitehall/Promotion Tom Winters Bob Bergstrom Peter Dawe Porsche 924 Carrera GTR 148 44DNF GTP 24 Pegasus III Racing M. L. Speer Ken Madren Ray Ratcliff Porsche 935 145 45DNF GTO 49 OMR Engines Hoyt Overbagh Peter Kirill Paul Romano Chevrolet Monza 145 46DNF GTO 13 Oftedahl Racing Paul Fassler Steve Pope Carl Shafer Pontiac Firebird 142 47 GTO 18 Diehl Hi-Pro Carmen Lista David Marks Roy Newsome Bobby Diehl Chevrolet Camaro 140 48 GTU 76 Hi Fi Hospital Timothy Lee Al White Irwin Ayes Ford Capri 140 49 GTO 15 DL Performance Engineering Doug Lutz Mike Brummer Larry Connor Porsche 911 Carrera RSR 139 50DNF GTO 36 Herman + Miller P+A Paul Miller Jim Busby Ron Grable Porsche 924 Carrera GTR 132 51 GTU 87 Don Flores Robert Gottfried Tom Turner Donald Flores Porsche 911 131 52DNF GTP 16 Hinze Fencing Marty Hinze Randy Lanier Terry Wolters March 82G 128 53 GTO 33 Karl Keck Karl Keck Bill McDill Robert Whitaker Chevrolet Corvette 128 54DNF GTO 29 Overby's Robert Overby Don Bell Chris Doyle Chevrolet Camaro 127 55 GTU 75 Bryant & Graham Racing Cameron Worth Alan Crouch Janis Taylor Ford Pinto 127 56DNF GTP 09 Henn's Swap Shop Racing Derek Bell Michael Andretti John Paul Jr. Porsche 935 125 57DNF GTP 8 Shelton Ferrari Steve Shelton Tom Shelton Ferrari 512 BB 120 58DNF GTP 44 Group 44 Bob Tullius Bill Adam Jaguar XJR-5 95 59DNF GTO 34 Drolsom Racing George Drolsom Steve Cohen William Gelles Porsche 924 Carrera GTR 94 60DNF GTO 26 Centurion Leasing Tom Nehl Nelson Silcox Patty Moise Chevrolet Camaro 92 61DNF GTP 21 Nimrod Racing Victor Gonzalez Drake Olson Nimrod NRA/C2 86 62DNF GTP 05 T&R Racing Tico Almeida Ernesto Soto Porsche 935 82 63DNF GTO 99 Londono Bridge Racing Gustavo Londono Carlos Munoz Hugo Gralia Porsche 911 Carrera RSR 81 64DNF GTO 20 Paul Canary Racing Paul Canary Jim Sanborn Pontiac Firebird 78 65 GTU 52 TFC Racing Dick Gauthier Tom Cripe Ron Collins Bill McVey Porsche 911 67 66DNF GTP 77 Z&W Enterprises Pierre Honegger Walt Bohren Mazda GTP 61 67DNF GTO 64 Marcus Opie Marcus Opie Tim Morgan Grant Bradley Chevrolet Corvette 59 68DNF GTU 78 Der Klaus Haus Klaus Bitterauf Vicki Smith Scott Flanders Porsche 911 59 69DNF GTO 28 Air Florida "Fomfor" Arnoldo Kreysa Albert Naon BMW M1 58 70DNF GTU 38 Mandeville Auto/Tech Roger Mandeville Amos Johnson Danny Smith Mazda RX-7 56 71DNF GTO 54 Daniel Vilarchao Reynaldo Fernandez Daniel Vilarchao Chevrolet Camaro 56 72DNF GTO 6 Shafer Motor Racing Craig Shafer George Shafer Joe Maloy Chevrolet Camaro 55 73DNF GTP 74 Mark Wagoner Del Russo Taylor Larry Figaro Chevron GTP 53 74DNF GTP 12 The Cummings Marque Don Cummings Craig Rubright Charles Gano Chevrolet Monza 50 75DNF GTP 25 Red Lobster Racing Dave Cowart Kenper Miller Mauricio de Narváez March 82G 46 76DNF GTU 31 Pegasus Racing Jack Griffin John Zouzelka Porsche 914 38 77DNF GTO 50 Latino Racing Kikos Fonseca Tato Ferrer Diego Febles Porsche 911 Carrera RSR 36 78DNF GTU 08 Diehl Hi Pro Enterprises Bobby Diehl Roy Newsome Mazda RX-7 29 79DNF GTP 39 Holly Racing John Gunn Ricardo Londono Phoenix JG1 26 80DNF GTO 40 Bieri Racing Uli Bieri Matt Gysler Duff Hubbard BMW M1 21 81DNF GTO 07 Londono Bridge Racing Fred Flaquer Gustavo Londono Ricardo Londono Rene Rodriguez Porsche 911 Carrera RSR 21 82DNF GTP 17 Dingman Bros. Racing Billy Dingman Roger Bighouse Chevrolet Corvette 11 83DNF GTP 47 Pepe Romero Bill Whittington Pepe Romero Doc Bundy March 83G 8 84DNF GTO 62 Bill Nelson Bill Nelson Dale Kreider Lojza Vosta Pontiac Firebird 1 DNS GTP 2 Hinze Fencing Marty Hinze Randy Lanier Terry Wolters Porsche 935 0 DNS GTO 53 Superior Racing Team Raul Garcia Eugenio Matienzo Chevrolet Camaro 0 DNS GTU 80 Hallet Motor Racing Circuit Anatoly Arutnoff Jose Marina Lancia Stratos HF 0

Class Winners

Class Winners GTP Akin / Whittington / O'Steen Porsche 935 K3 GTO Baker / Mullen / Nierop Porsche 934 GTU Dunham / Kline / Compton Mazda RX-7

References