| # |
Driver |
Team |
Car |
| 5 | Spurgeon May / Bobby Allison | Robert Harper | Chevrolet Corvair |
| 6 | Dick Guldstrand / Ben Moore / G Wintersteen | Roger Penske | Chevrolet Corvette Sting Ray |
| 7 | J.Bolander / Bob Winkelmann / J.Olson | John Olson | Ford Cortina |
| 12 | Dave Hull / Herb Byrne / Bob Kingham | Jaguar of Florida | Jaguar E-type |
| 14 | Peter Gregg / George Drolsom | Brumos Porsche Florida | Porsche 904 GTS |
| 15 | Hans Herrmann / Herbert Linge | Porsche System Engineering | Porsche 906 |
| 16 | Gerhard Mitter / Joe Buzzetta | US Porsche System Engineering | Porsche 904 GTS |
| 17 | Günther Klass / Udo Schütz | Porsche System Engineering | Porsche 904 GTS |
| 18 | Jack Ryan / Linley Coleman / Bill Bencker | RBM Motors | Porsche 911 |
| 19 | D.Forlong / L.Dieas / D.McClain | Dave McClain | Porsche 356B |
| 20 | Sam Posey / Jim Haynes | Sam Posey | Porsche 904 GTS |
| 21 | Pedro Rodriguez / Mario Andretti | North American Racing Team | Ferrari 365P2 |
| 22 | Jochen Rindt / Bob Bondurant | North American Racing Team | Ferrari 250LM |
| 23 | Mark Konig / Peter Clarke / Bob Hurt | Peter Clarke | Ferrari 250LM |
| 24 | I.Ireland / M.Hailwood / G.Drummond | Drummond Racing Organisation | Ferrari 250LM |
| 25 | Lucien Bianchi / G.Langlois von Ophem / Jean Beurlys | Ecurie Francorchamps | Ferrari 365P2 |
| 26 | Eldé / Jacky Ickx / Jean Beurlys | Ecurie Francorchamps | Ferrari 250LM |
| 27 | David Piper / Richard Attwood | David Piper | Ferrari 250LM |
| 28 | Denny Hulme / Victor Wilson | Team Chamaco Collect | Ferrari 250LM |
| 29 | Paul Hawkins / Jackie Epstein | Jackie Epstein | Ferrari 250LM |
| 30 | Larry B. Perkins / Jack Slottag | Scuderia Bear | Ferrari 250 GTO |
| 31 | John Fulp / Bill Rutan / Bruce Jennings | John Fulp | Ferrari 330P |
| 32 | G.Follmer / Don Wester / Paul Hawkins | North American Racing Team | Ferrari 250LM |
| 36 | Wilbur Pickett / Bill Bean | Cannon Auto | Alfa Romeo Giulia Zagato |
| 40 | G Waltman / A W. Swanson / Nick Cone | Genser Forman | Triumph TR4 |
| 41 | Hugh Kleinpeter / Harry Fry / George Parsons | E. P. Drescher | Triumph LM |
| 42 | Ken Hughes / Fred Salo / John Addison | John Addison | Triumph TR4 |
| 43 | Dana Kelder / Ara Dube / Red Wilson | Cannon Auto | Triumph TR4A |
| 44 | Ernie Croucher / Walter Glenn / Bill Eve | Kenneth G. Chambliss | MGB |
| 45 | Herb Byrne / Milo Vega | John Kingham | Triumph TR4A |
| 47 | David Lane / Don Sesslar | US David Lane | Porsche 904 GTS |
| 54 | R Stoutenburg / Gene Jones / Larry Isley | Raymond Stoutenburg | Plymouth Barracuda |
| 55 | Al Weaver / John Fraim / Chet Freeman | J. Randall | Lotus Elan |
| 56 | Ike A. Maxwell, Jr. / William J. Martin | William J. Martin | Volvo P1800 |
| 59 | Don Yenko / John W. Forte / Art Riley | Art Riley | Volvo P1800 |
| 65 | Jo Bonnier / Phil Hill | Chaparral Cars Inc. | Chaparral 2D Chevrolet |
| 67 | George Cornelius / Dick Boo / Robert Ryan Brown | Cannon Auto | Chevrolet Corvette Sting Ray |
| 70 | Rosemary Smith / Smokey Drole | Autosport | Sunbeam Alpine |
| 73 | W.McKemie / T.Petmecky / Fred Opert | Fred Opert | Elva Courier Mk.IV |
| 74 | Larry Hess / Tommy Hess | Queen City Rambler | Rambler Marlin |
| 75 | Art Riley / Ross MacGrotty | McMillan Ring Free Oil Co. | Yenko Stinger |
| 77 | John Bentley / John E. Hill | Space Science | Sunbeam Tiger |
| 79 | Paul Richards / Ray Cuomo | Autosport | Austin-Healey Sprite |
| 80 | Donna Mae Mims / Janet Guthrie / Suzy Dietrich | Autosport | Sunbeam Alpine |
| 84 | Ben Scott / Peter Flanagan / Roger Chastain | Pompano Sports Cars | Alfa Romeo Giulia Sprint |
| 85 | Bill Clark / H. Bryan Crow / A Arutunoff | Anatoly Arutunoff | Alfa Romeo Giulia Sprint |
| 86 | Peter Sutcliffe / Bob Grossman | Ford Advanced Vehicles | Ford GT40 |
| 87 | Richie Ginther / Ronnie Bucknum | Holman & Moody | Ford Mk II |
| 88 | William Wonder / Herb Wetanson | Bill Wonder | Ford GT40 |
| 89 | Dan Gerber / Bob Johnson / Peter Learch | Dan Gerber | Shelby Cobra |
| 90 | Don Kearney / Michael Reina | Michael Reina | Ford Mustang |
| 91 | Dick Thompson / Skip Scott / Peter Revson | Essex Wire Corporation | Ford GT40 |
| 92 | Peter Revson / Masten Gregory / Ed Lowther | Essex Wire Corporation | Ford GT40 |
| 93 | Harold Keck / Oscar Koveleski / Ed Lowther | Scuderia Bear | Shelby Cobra |
| 94 | R.Noseda / G.Clark / B.Thorpe / H.Heuer | Ralph Noseda | Shelby Cobra |
| 95 | Walt Hansgen / Mark Donohue | Holman & Moody | Ford Mk II |
| 96 | Chris Amon / Bruce McLaren | Shelby American | Ford Mk II |
| 97 | Dan Gurney / Jerry Grant | Shelby American Inc. | Ford Mk II |
| 98 | Ken Miles / Lloyd Ruby | Shelby American Inc | Ford Mk II |
| 99 | Roger West / Dick Macon | Joe Treadwell | Ford Mustang |
24 hours of Daytona 1966