| Most frequent co-drivers: | Al Holbert (8), Bobby Rahal (7), Ludwig Heimrath, Jr. (5), Jerry Thompson (4), Lyn St. James (3), Deborah Gregg (3), Doug Carmean (2), Alfredo Mena (2), Don Yenko (2), Dave Heinz (1), Steve Southard (1), Steve Durst (1), Bruce Canepa (1), Chip Mead (1), Dan Furey (1), John Higgins (1), Skeeter McKitterick (1), Doc Bundy (1), Mike Brockman (1), Mauricio DeNarvaez (1), Michael Keyser (1), Gianpiero Moretti (1), Massimo Sigala (1), Ed Pimm (1), Cary Eisenlohr (1) |
| Most frequent makes: | March (20), Chevrolet (15), Ralt (11), Alba (9), Cicale (9), Lola (6), Argo (4), Porsche (4), Mazda (2), Tiga (1), Lotus (1), Elva (1), Chevron (1) |
| Most frequent types: | Monza (13), RT2 (11), 83G (10), AR5 (9), Ralt RT1 1/2 (9), 822 (7), T296 (6), JM16 (4), 82G (3), 924 (2), RX-7 (2), Vega (1) |
| Most frequent chassis: | Trueman (12), RT2/153 (11), RT1-106 (9), AR5-006 (8), 812-7 (7), 83G-4 (6), T296-HU88 (6), JM16/100/GTP (4), 82G-1 (3), 83G-3 (2), WP0ZZZ93ZBS720011 (2), GT284-278 (1) |
| Most frequent tracks: | Daytona (13), Mid-Ohio (13), Riverside (8), Sebring (7), Mosport (6), Road Atlanta (6), Road America (5), Laguna Seca (4), Charlotte (4), Sears Point (4), Watkins Glen (3) |