The 18th Annual 24 Hour Pepsi Challenge Daytona was a 24-hour GT race held on February 2–3, 1980^[1] at the Daytona International Speedway road course. The race served as the opening round of the 1980 World Championship for Makes, 1980 World Challenge for Endurance Drivers and the 1980 IMSA GTX, GTO and GTU Championships.

Victory overall and in the GTX class went to the No. 2 Joest Racing run Porsche 935 J from Germany, driven by the all-German crew of Reinhold Jöst, Volkert Merl and Rolf Stommelen. Over the 24 hours elapsed time of the race the Joest Porsche completed 715 laps, covering 4,418 kilometres. The team won the race by 33 laps over the No. 09 Preston Henn run Porsche 935/77A driven by Al Holbert and John Paul. Another 18 laps behind was the No. 0 Porsche 935 K3/80 of Interscope Racing driven by Ted Field, Milt Minter and Danny Ongais.^[2][3]

Victory in the GTU Class and fifth outright was the No. 62 Porsche 914/6 driven by Jim Cook, Bill Koll and Greg LaCava by 14 laps over the No. 77 Mazda RX-7 of Jim Downing, Brad Frisselle and Roger Mandeville. Victory in the GTO class and sixth outright went to the No. 54 Montura Racing Porsche 911 Carrera RSR driven by Tony Garcia, Terry Herman and Alberto Vadia by a single lap over the Colombian No. 46 DeNarvaez Racing Porsche 911 Carrera RSR driven by Mauricio DeNarvaez, Ricardo Londoño and Albert Naon.

Class winners denoted in bold and with ‡.

Pos	Class	No.	Team / Entrant	Drivers	Car	Laps
					Engine
1	GTX	2	Joest Racing	Reinhold Jöst Volkert Merl Rolf Stommelen	Porsche 935 J	715 ‡
					Porsche 2.8 L Twin-turbo Flat-6
2	GTX	09	Thunderbird Swap Shops	John Paul Al Holbert DNS: Preston Henn	Porsche 935/77A	682
					Porsche Turbo Flat-6
3	GTX	0	Interscope Racing	Ted Field Milt Minter Danny Ongais	Porsche 935 K3/80	664
					Porsche Turbo Flat-6
4	GTX	80	All Canadian Racing	Maurice Carter Craig Carter Murray Edwards	Chevrolet Camaro	639
					Chevrolet 7.0 V8
5	GTU	62	William J. Koll	Bill Koll Jim Cook Greg LaCava	Porsche 914/6	632 ‡
					Porsche 2.0 L Flat-6
6	GTO	54	Montura Racing	Tony Garcia Terry Herman Alberto Vadia	Porsche 911 Carrera RSR	630 ‡
					Porsche 3.0 L Flat-6
7	GTO	46	DeNarvaez Racing	Mauricio DeNarvaez Ricardo Londoño Albert Naon	Porsche 911 Carrera RSR	629
					Porsche 3.0 L Flat-6
8	GTU	77	Roger Mandeville	Roger Mandeville Jim Downing Brad Frisselle	Mazda RX-7	618
					Mazda 1.3 L Rotary
9	GTX	9	Dick Barbour Racing	Bob Garretson Skeeter McKitterick Anny-Charlotte Verney	Porsche 935 K3	599
					Porsche 3.2 L Twin-turbo Flat-6
10	GTX	4	Jolly Club	Carlo Facetti Martino Finotto DNS: Gianfranco Ricci	Lancia Montecarlo Turbo	597
					Lancia Lampedri 1.4 L Turbo I4
11	GTX	59	Brumos Porsche Audi	Peter Gregg Hurley Haywood Bruce Leven	Porsche 935/79	584
					Porsche Turbo Flat-6
12	GTU	73	Z&W Enterprises	Fred Apgar Pierre Honegger Mark Hutchins	Mazda RX-7	546
					Mazda Rotary
13	GTO	89	Hector Huerta	Jean-Paul Libert Francisco Romero Ernesto Soto	Porsche 911 Carrera RSR	544
					Porsche 3.0 L Flat-6
14 DNF	GTO	65	Nicholas/McRoberts Racing	Tony Adamowicz John Morton	Ferrari 365 GTB/4	539
					Ferrari Tipo 251 4.4 L V12
15	GTU	78	Revolution Wheels	Robert Giesel Alan Johnson Bruce Nesbitt	Mazda RX-2	533
					Mazda 1.3 L Rotary
16 DSQ	GTX	93	Whittington Brothers Racing	Bill Whittington Dale Whittington Don Whittington	Porsche 935 K3	509
					Porsche 3.2 L Turbo Flat-6
17	GTU	81	Trinity Racing	Lyn St. James Mark Welch Tom Winters	Mazda RX-7	498
					Mazda Rotary
18	GTU	08	Moran Construction	M. L. Speer Ray Ratcliff Terry Wolters	Porsche 911 SC	489
					Porsche 3.0 L Flat-6
19	GTU	57	Independent Personalized	Wayne Baker Dan Gilliland Jeff Scott	Porsche 914/4	486
					Volkswagen 411E 1.6 L Flat-4
20	GTU	82	Trinity Racing	John Casey Steve Dietrich Lee Mueller	Mazda RX-7	483
					Mazda Rotary
21	GTO	10	Oftedahl Trucking	Dave Heinz Gerry Wellik Bob Young	Chevrolet Camaro	476
					Chevrolet 5.7 V8
22	GTO	22	Group Bruckmann	Volker Bruckmann Rug Cunningham David Goodell	Porsche 911 Carrera RSR	464
					Porsche 3.0 L Flat-6
23	GTO	37	Botero Racing	Jorge Cortés Honorato Espinosa Francisco López	Porsche 911 Carrera RSR	457
					Porsche 3.0 L Flat-6
24 DNF	GTU	39	JLC Racing	Stu Fisher Amos Johnson Allan Moffat DNS: Brad Frisselle	Mazda RX-7	440
					Mazda Rotary
25 DNF	GTO	28	Tom Nehl	Tom Nehl Peter Kirill Kathy Rude	Chevrolet Camaro	435
					Chevrolet 5.7 V8
26 DNF	GTO	37	T&R Racing	Luis Méndez Tico Almeida Rene Rodriguez	Porsche 911 Carrera RSR	423
					Porsche 3.0 L Flat-6
27	GTO	15	Bavarian Motors International	Bruno Beilcke Alf Gebhardt DNS Helmut Trieb	BMW 3.5 CSL	420
					BMW M49 4.5 L I6
28	GTO	92	The Cummings Marque	Don Cummings Guido Levetto	Shelby GT350	410
					Ford V8
29	GTX	6	Dick Barbour Racing	Dick Barbour John Fitzpatrick Manfred Schurti	Porsche 935 K3/80	405
					Porsche 3.2 L Twin-turbo Flat-6
30 DNF	GTO	71	Keirn Garage	Philip Keirn Ed Errington Larry Trotter	Chevrolet Corvette C3	402
					Chevrolet V8
31	GTX	76	Arrow Heating Co.	Joe Chamberlain John Chamberlain Richard Valentine	Chevrolet Corvette C3	393
					Chevrolet 7.0 L V8
32 DNF	GTO	85	David Deacon	Jacques Bienvenue David Deacon Peter Moennick	Porsche 911 Carrera RSR	375
					Porsche 3.0 L Flat-6
33	GTU	06	Intrepid, Inc.	Joe DiBattista Tom Ciccone Alan Howes	Porsche 911	358
					Porsche Flat-6
34 DNF	GTU	79	Sports Ltd. Racing	Pat Bedard Bob Bergstrom	Mazda RX-7	355
					Mazda Rotary
35	GTO	56	Rick Borlase	Rick Borlase Michael Hammond Don Kravig	Porsche 911 Carrera	348
					Porsche Flat-6
36 DNF	GTX	69	Preston Henn	Preston Henn Pierre Dieudonné	Ferrari 512 BB LM	341
					Ferrari Tipo F102B 4.9 L Flat-12
37 DNF	GTO	24	American Racing Team	Ray Mummery Jack Refenning Ren Tilton	Porsche 934	337
					Porsche 3.0 L Turbo Flat-6
38 DNF	GTU	52	Snowmobile Racing	Tom Cripe Joseph Hamilton Fred Snow	Porsche 911 S	301
					Porsche Flat-6
39 DNF	GTX	5	Racing Associates	Charles Mendez Paul Miller Brian Redman	Porsche 935 K3	290
					Porsche Twin-turbo Flat-6
40 DNF	GTO	96	NTS Racing	William Coykendall Bob Earl Fred Stiff	Datsun 240Z	281
					Datsun I6
41 DNF	GTO	42	Dick Neland	Dick Neland Joe Cotrone Bill Ferran	Chevrolet Camaro	270
					Chevrolet 5.7 V8
42 DNF	GTU	95	Mike Ramirez Racing	Mike Ramirez Luis Gordillo Manuel Villa	Porsche 911	263
					Porsche Flat-6
43 DNF	GTX	11	March Engineering	Ian Grob Michael Korten Patrick Nève	March-BMW M1/C	260
					BMW M88 3.5 L I6
44 DNF	GTU	70	Herman Racing	Chris Doyle Charles Guest Mike Meyer	Mazda RX-7	250
					Mazda Rotary
45 DNF	GTX	13	Andial Racing	Elliot Forbes-Robinson Howard Meister Randolph Townsend	Porsche 935 K3	233
					Porsche Twin-turbo Flat-6
46 DNF	GTO	32	Scorpio Racing	Eduardo Barrientos Enrique Molins Carlos Pineda	Porsche 911 Carrera RSR	233
					Porsche 3.0 L Flat-6
47 DNF	GTX	25	Deren Automotive	Christine Beckers Dave Cowart Kenper Miller	BMW M1	222
					BMW M88 3.5 L I6
48 DNF	GTX	55	Racing Associates	Claude Ballot-Léna Gérard Bleynie Ralph Kent-Cooke	Porsche 935	217
					Porsche Twin-turbo Flat-6
49 DNF	GTO	38	Boricua Racing	Bonky Fernandez Tato Ferrer Kees Nierop	Porsche 911 Carrera RSR	211
					Porsche 3.0 L Flat-6
50 DNF	GTX	19	Chris Cord Racing	Jim Adams Chris Cord DNS: Dick Ferguson	Chevrolet Monza	188
					Chevrolet 6.0 L V8
51 DNF	GTX	94	Whittington Brothers Racing	Axel Plankenhorn Dale Whittington	Porsche 935/79	179
					Porsche Turbo Flat-6
52 DNF	GTO	44	Group 44	Bob Tullius John Kelly John McComb	Triumph TR8	171
					Rover 3.9 L V8
53 DNF	GTO	75	Show Cars of Florida	Stephen Bond Billy Hagan Dale Kreider	Chevrolet Corvette C3	170
					Chevrolet V8
54 DNF	GTX	05	Racing Associates	Bob Akin Bobby Rahal Roy Woods	Porsche 935 K3	156
					Porsche Twin-turbo Flat-6
55 DNF	GTO	51	Moana Corp.	Robert Kirby John Hotchkis John Hotchkis, Jr.	Porsche 911 Carrera RSR	147
					Porsche 3.0 L Flat-6
56 DNF	GTX	3	Jim Busby Racing	Jim Busby Bruce Jenner Rick Knoop	March-BMW M1/C	139
					BMW M88 3.5 L I6
57 DNF	GTU	23	Frank L. Carney	Frank Carney Dick Davenport Don Devendorf	Datsun 280ZX	109
					Nissan L28E 2.8 L I6
58	GTO	99	Full-Time Racing	Phil Currin	Chevrolet Corvette C3	89
					Chevrolet V8
59 DNF	GTX	30	Electrodyne	Gianpiero Moretti Bruce Canepa Fernando Cazzaniga	Porsche 935 J	72
					Porsche 3.2 L Twin-turbo Flat-6
60 DNF	GTO	58	Coco Lopez-Piña Colada	Diego Febles Mandy Gonzalez Chiqui Soldevilla	Porsche 911 Carrera RSR	60
					Porsche 3.0 L Flat-6
61 DNF	GTO	16	Yenko Chevrolet-Honda	Kim Mason Jerry Thompson Don Yenko	Chevrolet Corvette C3	56
					Chevrolet V8
62 DNF	GTU	17	Racing Beat	Dennis Aase Walt Bohren Jeff Kline	Mazda RX-7	51
					Mazda Rotary
63 DNF	GTO	03	Toyota Village	Rudy Bartling Werner Frank Angelo Pallavicini	Porsche 934	51
					Porsche 3.0 L Turbo Flat-6
64 DNF	GTU	83	Zotz Garage	John Belperche Doug Zitza Harro Zitza	Porsche 914/6	44
					Porsche 2.0 L Flat-6
65 DNF	GTO	63	Guy Thomas	Hugh Davenport Nort Northam Guy Thomas	Chevrolet Camaro	29
					Chevrolet 5.7 V8
66 DNF	GTX	07	Heimrath Racing	Ludwig Heimrath Carlos Moran Johnny Rutherford	Porsche 935	24
					Porsche Twin-turbo Flat-6
67 DNF	GTU	18	Automobile International	Anatoly Arutunoff George Drolsom José Marina	Lancia Stratos HF	20
					Ferrari Dino 2.4 L V6
68 DNF	GTO	88	Herb Adams VSE	Herb Adams Walker Evans Kenny Roberts	Pontiac Firebird	0
					Pontiac V8
DNQ	GTX	00	Interscope Racing	Ted Field Milt Minter Danny Ongais	Porsche 935/77A
					Porsche Turbo Flat-6
DNQ	GTX	14	Renaissance Group Racing	Pierre Dieudonné Jorge Koechlin Leon Walger	Porsche 935
					Porsche Turbo Flat-6
DNS	GTO	8	Bob Beasley	Bob Beasley Chuck Grantham George Stone	Porsche 911 Carrera RSR
					Porsche 3.0 L Flat-6
DNS	GTO	98	Van Every Racing	Bill Johnson Ash Tisdelle Lance Van Every	Porsche 911 Carrera RSR
					Porsche 3.0 L Flat-6
DNQ	GTU	01	Roehrig Racing	Francois Laurin J. Kurt Roehrig Dave White	BMW 320i
					BMW M10 2.0 L I4
DNQ	GTU	12	Sidney Smith III	Sidney Smith Tommy Johnson Karl Schoepflin	Porsche 914/6
					Porsche 2.0 L Flat-6
DNQ	GTU	33	A-10 Racing	Richard Aten Jack Refenning Peter Welter	Porsche 911
					Porsche Flat-6
DNQ	GTU	35	Janis Taylor	Vic Provenzano Rex Ramsey Del Russo Taylor	Alfa Romeo Alfetta GTV
					Alfa Romeo Twin Cam 2.0 L I4
DNS	GTO	49	Tortilla Flats Racing	Bob Copeman Jerry Demele Warwick Henderson	Porsche 911 Carrera RSR
					Porsche 3.0 L Flat-6
DNS	GTX	91	Grand Prix International	Kerry Mitt Bob Pearl Richard Valentine	Chevrolet Corvette C3
					Chevrolet V8
Source:[2]