| 26.1.1958 | 1000 km Buenos Aires | 62 | | Monro / Dibos | | DNF |
| 8.2.1958 | Preliminary Pomona [Production +2.7] | 10 | | Lek von Kaesborg | Velva von Kaesborg | DNA |
| 8.2.1958 | Preliminary Pomona [Production +2.7] | 36 | | Tony Settember | Tony Settember | 3rd |
| 8.2.1958 | Preliminary Pomona [Production +2.7] | 110 | | Bob Winkelmann | Bob Winkelmann | 6th |
| 8.2.1958 | Preliminary Pomona [Production +2.7] | 112 | | Bill Atkins | Bill Atkins | DNA |
| 9.2.1958 | Pomona [Production +2.0] | 10 | | Lek von Kaesborg | Velva von Kaesborg | DNA |
| 9.2.1958 | Pomona [Production +2.0] | 36 | | Tony Settember | Tony Settember | 2nd |
| 9.2.1958 | Pomona [Production +2.0] | 110 | | Bob Winkelmann | Bob Winkelmann | 8th |
| 9.2.1958 | Pomona [Production +2.0] | 112 | | Bill Atkins | Bill Atkins | DNA |
| 15.2.1958 | Preliminary New Smyrna Beach [Novice 1] | | | | | raced |
| 1.3.1958 | Preliminary Phoenix [Novice] | 13 | | Russell Cowles | | 16th |
| 1.3.1958 | Preliminary Phoenix [Novice] | 40 | | Carlton Beal | | 5th |
| 1.3.1958 | Preliminary Phoenix [Novice] | 110 | | Gel Brown | | 6th |
| 2.3.1958 | SCCA Regional Phoenix [Production] | 13 | | Russell Cowles | | 6th |
| 2.3.1958 | SCCA Regional Phoenix [BP+CP+DP+EP] | 13 | | Russell Cowles | | 6th |
| 2.3.1958 | SCCA Regional Phoenix [BP+CP+DP+EP] | 40 | | Carlton Beal | | DNF |
| 2.3.1958 | SCCA Regional Phoenix [Main] | 110 | | Bob Winkelmann | | DNF |
| 2.3.1958 | SCCA Regional Phoenix [Production] | 110 | | Bob Winkelmann | | 3rd |
| 2.3.1958 | SCCA Regional Phoenix [BP+CP+DP+EP] | 110 | | Bob Winkelmann | | 2nd |
| 8.3.1958 | Novice Mansfield [S+1.6] | 171 | | D. B. Knight | | DNF |
| 8.3.1958 | Preliminary Boca Raton [Novice] | | | Clifford Hoch | | 1st |
| 9.3.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP] | 171 | | D. B. Knight | | 13th |
| 9.3.1958 | SCCA Regional Mansfield [BP+CP+DP+EP+FP] | 171 | | D. B. Knight | | 23rd |
| 22.3.1958 | 12 h Sebring | 4 | #0406500094 | Lippmann / Giron | Scuderia Central America | DNA |
| 22.3.1958 | 12 h Sebring | 5 | | Alvarez / Rivera | Scuderia Central America | DNA |
| 23.3.1958 | Preliminary Stockton [Novice Production +1.6] | 5 | | Gel Brown | | 1st |
| 23.3.1958 | Preliminary Stockton [Novice Production +1.6] | 60 | | Carlton Beal | | 4th |
| 23.3.1958 | Preliminary Stockton [Novice Production +1.6] | 127 | | Carl Briggs | | 11th |
| 23.3.1958 | SCCA Regional Stockton [Production +1.6] | | | Lek von Kaesborg | | DNF |
| 30.3.1958 | SCC-BC Abbotsford [Race 2] | 543 | | G. Stangl | | 1st |
| 13.4.1958 | SCCA Regional Palm Springs [BP+CP+DP+EP] | 80 | | Carlton Beal | Carlton Beal | 9th |
| 20.4.1958 | San Salvador | 11 | | Manfred Schmitt | Víctor Safié | raced |
| 20.4.1958 | San Salvador | 12 | | Paul O'Shea | A. A. S., Carlos Panama y Samuel Alvarez | 2nd |
| 20.4.1958 | San Salvador | 13 | | Manfredo Lippmann | Manfred Lipmann | DNF |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 55 | | Bob Rubin | | DNA |
| 27.4.1958 | SCCA Regional Lime Rock [BM+BP+CP+UR+FIII] | 140 | | Jerry Loman | | DNA |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 54 | | Dean Mears | | DNA |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 54 | | Dean Mears | | DNA |
| 4.5.1958 | Preliminary Virginia [BP+CP+BM+CM+DM+EM+FM] | 155 | | Bob Rubin | | DNA |
| 4.5.1958 | SCCA National Virginia [BM+CM+DM+EM+FM+BP+CP] | 155 | | Bob Rubin | | DNA |
| 10.5.1958 | Novice Tracy [Production +1.6] | 5 | | Gel Brown | Natalie Brown | 2nd |
| 10.5.1958 | Preliminary Tracy [Production +1.6] | 5 | | Bob Winkelmann | Natalie Brown | DNA |
| 11.5.1958 | SCCA Regional Tracy [Production Group C] | 5 | | Bob Winkelmann | Natalie Brown | DNA |
| 11.5.1958 | Hawaii [Production +1.6] | 10 | | Lek von Kaesborg | Carlton Beal | DNA |
| 11.5.1958 | Hawaii [Match] | 10 | | Lek von Kaesborg | Carlton Beal | DNA |
| 11.5.1958 | Hawaii [S+1.6] | 10 | | Lek von Kaesborg | Carlton Beal | 9th |
| 11.5.1958 | Hawaii [Match] | 40 | | Carlton Beal | Carlton Beal | DNA |
| 11.5.1958 | Hawaii [S+1.6] | 40 | | Carlton Beal | Carlton Beal | DNA |
| 11.5.1958 | Hawaii [Production +1.6] | 40 | | Carlton Beal | Carlton Beal | DNA |
| 11.5.1958 | Targa Florio | 46 | | Bongiasca / Bongiasca | | DNS |
| 11.5.1958 | Targa Florio | 48 | | Cestelli-Guidi / Musso | | DNF |
| 15.5.1958 | Eläintarhanajo [GT] | 12 | | Bjarne Rehn | | 4th |
| 15.5.1958 | Aspern [GT+1.6] | 35 | | Alberico Cacciari | Alberico Cacciari | DNA |
| 15.5.1958 | Aspern [GT+1.6] | 36 | | Adolf Kern | Adolf Kern | raced |
| 15.5.1958 | Aspern [GT+1.6] | 37 | | Theo Geither | Theo Geither | raced |
| 15.5.1958 | Aspern [GT+1.6] | 40 | | | | raced |
| 18.5.1958 | SCCA National Cumberland [BP+CP] | 55 | | Bob Rubin | Bob Rubin | DNA |
| 18.5.1958 | SCCA National Cumberland [BP+CP] | 110 | | Steele Roberts | Steele M. Roberts | DNA |
| 18.5.1958 | SCCA National Cumberland [BP+CP] | 154 | | Dean Mears | Dean E. Mears | ?th |
| 31.5.1958 | Preliminary Santa Barbara [BP+CP] | 10 | | Lek von Kaesborg | Velva von Kaesborg | DNA |
| 31.5.1958 | Preliminary Santa Barbara [BP+CP] | 51 | | Brown / Winkelmann | Natalie Brown | DNA |
| 31.5.1958 | Preliminary Santa Barbara [Novice] | 51 | | Gel Brown | Natalie Brown | 11th |
| 31.5.1958 | Preliminary Santa Barbara [BP+CP] | 71 | | Carl Briggs | Carl Briggs | DNA |
| 31.5.1958 | Preliminary Santa Barbara [BP+CP] | 85 | | Carlton Beal | Carlton Beal | DNA |
| 31.5.1958 | Novice Dunkirk [CM+EM+GM+HM+BP+CP+DP] | 96 | | Jerry Loman | | 6th |
| 31.5.1958 | Preliminary Bridgehampton [GT] | 154 | | Dean Mears | | 2nd |
| 31.5.1958 | SCCA National Bridgehampton [BP+CP+UR+FIII] | 154 | | Dean Mears | | 4th |
| 31.5.1958 | Preliminary Santa Barbara [BP+CP] | 212 | | Bill Atkins | Bill Atkins | DNA |
| 31.5.1958 | ICNSCC Deer Park [Modified] | | | Dick Jones | | 5th |
| 31.5.1958 | ICNSCC Deer Park [Production +1.5] | | | Ray Rairdon | | 2nd |
| 31.5.1958 | ICNSCC Deer Park [Production +1.5] | | | Dick Jones | | 3rd |
| 1.6.1958 | SCCA Regional Dunkirk [CM+DM+EM+CP] | 21 | | David Deuble | | 4th |
| 1958 | Preliminary Plains Premiere [Novice] | | | Carlton Beal | | 2nd |
| 1958 | Plains Premiere [BP+CP+DP+EP+FP] | | | Carlton Beal | | ?th |
| 1958 | Plains Premiere [Main] | | | Carlton Beal | | ?th |
| 1958 | Preliminary Plains Premiere [BP+CP+DP+EP] | | | Carlton Beal | | 3rd |