Date: 18th January 1958
Venue: Levin
10 laps of 1.77 km (17.7 km)
Result |
Driver | Nat | Car / Engine | Laps | Time |
| 1 | Jack Brabham | Aust | Cooper T43 / Climax 2249cc 4cyl | 10 | 9m 7.2s |
| 2 | Archie Scott-Brown | UK | Lister 57/1 / Jaguar 3781cc 6cyl | 10 | |
| 3 | Bruce McLaren | NZ | Cooper T43 / Climax 1750cc 4cyl | 10 | |
| 4 | Ross Jensen | NZ | Maserati 250F / Maserati 2497cc 6cyl | 10 | |
| 5 | Ron Roycroft | NZ | Ferrari 375 / Ferrari 4493cc V12 | 10 | |
| 6 |
Syd Jensen |
NZ | Cooper Mk X / Norton 515cc 1cyl | 10 | |
| Roy Salvadori | UK | Connaught B / Alta 2470cc 4cyl | |||
| Stuart Lewis-Evans | UK | Connaught B / Alta 2470cc 4cyl | |||
| Dick Gibson | UK | Cooper T43 / Climax 1496cc 4cyl | |||
| Arnold Glass | Aust | Ferrari Super Squalo 555 / Ferrari 3431cc 4cyl | |||
| Ret | Merv Neil | NZ | Cooper T39 / Climax 1498cc 4cyl | Accident | |
| DNS | Ron Frost | NZ | Cooper T41 / Climax 1498cc 4cyl | Accident |
Fastest Lap: Archie Scott-Brown 52.8s (Record).
Date: 25th January 1958
Venue: Wigram Airfield
71 laps of 3.405 km (241.77 km)
Grid: (* denotes pole)
Archie Scott-Brown*
Stuart Lewis-Evans
Ross Jensen
Bruce McLaren
Ron Roycroft
Frank Cantwell
Pat Hoare
The remaining grid positions are unknown. Jack Brabham was unable to practice and as a result started from the rear of the grid.
Result |
Driver | Nat | Car / Engine | Laps | Time |
| 1 | Archie Scott-Brown | UK | Lister 57/1 / Jaguar 3781cc 6cyl | 71 | 1hr 47m 33.4s |
| 2 | Ross Jensen | NZ | Maserati 250F / Maserati 2497cc 6cyl | 71 | 1hr 48m 18.5s |
| 3 | Stuart Lewis-Evans | UK | Connaught B / Alta 2470cc 4cyl | 71 | 1hr 49m 11.7s |
| 4 | Pat Hoare | NZ | Ferrari 625 / Ferrari 2996cc 4cyl | 69 | |
| 5 | Merv Mayo | NZ | Cooper T41 / Climax 1498cc 4cyl | 67 | |
| 6 | Arnold Glass | Aust | Ferrari Super Squalo 555 / Ferrari 3431cc 4cyl | 66 | |
| 7 | Duncan Rutherford | NZ | Lycoming Special / Lycoming 4733cc 4cyl | ||
| 8 | Ron Roycroft | NZ | Ferrari 375 / Ferrari 4493cc V12 | ||
| 9 | Gavin Quirk | NZ | Maserati 250F / Maserati 2497cc 6cyl | ||
| 10 | Ralph Watson | NZ | Lycoming Special / Lycoming 4733cc 4cyl | ||
| Bob Gibbons | NZ | Jaguar D-type / Jaguar 3442cc 6cyl | |||
| Ret | Bruce McLaren | NZ | Cooper T43 / Climax 1750cc 4cyl | 66 | Gearbox |
| Ret | Jack Brabham | Aust | Cooper T43 / Climax 2249cc 4cyl | 29 | Gearbox |
| Ret | Roy Salvadori | UK | Connaught B / Alta 2470cc 4cyl | ||
| Ret | Frank Cantwell | NZ | Tojeiro 3/56 / Jaguar 3442cc 6cyl | Tyre | |
| Dick Gibson | UK | Cooper T43 / Climax 1496cc 4cyl | |||
| Ken Harris | NZ | Ferrari 750 Monza / Ferrari 2999cc 4cyl | |||
| Merv Neil | NZ | Cooper T39 / Climax 1498cc 4cyl | |||
| Frank Shuter | NZ | Maserati 8CLT-50 / Maserati 2984cc 8cyl s/c | |||
| Ernie Sprague | NZ | Maserati 4CLT-48 / Maserati 1498cc 4cyl s/c | |||
| Graham Pierce | NZ | Austin-Healey 100S / Austin 2660cc 4cyl | |||
| Arthur Kennard | NZ | Healey-Corvette / Chevrolet 4342cc V8 | |||
| Ian Mackellar | NZ | Cooper T39 / Climax 1098cc 4cyl | |||
| Geoff Mardon | NZ | RA Vanguard / Vanguard 2088cc 4cyl s/c | |||
| Bruce Wood | NZ | Staride 52 / JAP 497cc 1cyl | |||
| Wally Darrell | NZ | ACE III / Ford 2584cc 6cyl |
Fastest Lap: Archie Scott-Brown 1m 27.5s (Record)
36 laps of 2.277 km (82 km)
Grid: (* denotes Pole)
Dick Gibson*
Ross Jensen
Ron Roycroft
Bruce McLaren
Merv Neil
Syd Jensen
Frank Cantwell
Ron Frost
Archie Scott-Brown
Johnny Buza
Geoff Mardon
Ernie Sprague
Pat Hoare
Ian Mackellar
R G Levick
Jack Malcolm
Vic Blackburn
Result |
Driver | Nat | Car / Engine | Laps | Time |
| 1 | Ross Jensen | NZ | Maserati 250F / Maserati 2497cc 6cyl | 36 | 43m 34.2s |
| 2 | Bruce McLaren | NZ | Cooper T43 / Climax 1750cc 4cyl | 36 | 43m 47.0s |
| 3 |
Syd Jensen |
NZ | Cooper Mk X / Norton 515cc 1cyl | ||
| 4 | Pat Hoare | NZ | Ferrari 625 / Ferrari 2996cc 4cyl | ||
| 5 | Dick Gibson | UK | Cooper T43 / Climax 1496cc 4cyl | ||
| 6 | Ian Mackellar | NZ | Cooper T39 / Climax 1098cc 4cyl | ||
| 7 | R G Levick | NZ | Cooper / Norton 515cc 1cyl | ||
| 8 | Ernie Sprague | NZ | Maserati 4CLT-48 / Maserati 1498cc 4cyl s/c | ||
| 9 | Jack Malcolm | NZ | Cooper-Bristol Mk II / Bristol 1971cc 6cyl | ||
| 10 |
Vic Blackburn |
NZ | Citroen Special / Citroen 1991cc 4cyl | ||
| Ret | Geoff Mardon | NZ | RA Vanguard / Vanguard 2088cc 4cyl s/c | 30 | Lost Wheel |
| Ret | Ron Frost | NZ | Cooper T41 / Climax 1498cc 4cyl | 19 | Clutch |
| Ret | Archie Scott-Brown | UK | Lister 57/1 / Jaguar 3781cc 6cyl | 7 | Differential |
| Ret | Frank Cantwell | NZ | Tojeiro 3/56 / Jaguar 3442cc 6cyl | 5 | deDion Tube |
| Ret | Ron Roycroft | NZ | Ferrari 375 / Ferrari 4493cc V12 | 2 | Gearbox |
| Ret | Merv Neil | NZ | Cooper T43 / Climax 1960cc 4cyl | 1 | Transmission |
| DNS | Johnny Buza | NZ | HWM / Alta 1960cc 4cyl s/c |
Fastest Lap: Ross Jensen / Bruce McLaren 1m 15.4s.
40 laps of 2.414 km (96.55 km)
Grid: (* denotes Pole)
Ross Jensen*
Bruce McLaren
Jack Brabham
Ron Roycroft
Archie Scott-Brown
Bruce Wood
Merv Neil
Ron Frost
Syd Jensen
Ernie Sprague
Dick Gibson
Frank Cantwell
Pat Hoare
Ian Mackellar
Doc Langley
Ken McMillan
Bill Gerrard
Result |
Driver | Nat | Car / Engine | Laps | Time |
| 1 | Ross Jensen | NZ | Maserati 250F / Maserati 2497cc 6cyl | 40 | 49m 19.1s |
| 2 | Bruce McLaren | NZ | Cooper T43 / Climax 1750cc 4cyl | 40 | 49m 36.1s |
| 3 | Jack Brabham | Aust | Cooper T43 / Climax 1960cc 4cyl | 39 | |
| 4 | Merv Neil | NZ | Cooper T39 / Climax 1498cc 4cyl | 38 | |
| 5 | Ron Roycroft | NZ | Ferrari 375 / Ferrari 4493cc V12 | ||
| 6 | Archie Scott-Brown | UK | Lister 57/1 / Jaguar 3781cc 6cyl | ||
| 7 | Ernie Sprague | NZ | Maserati 4CLT-48 / Maserati 1498cc 4cyl s/c | ||
| Pat Hoare | NZ | Ferrari 625 / Ferrari 2996cc 4cyl | |||
|
Syd Jensen |
NZ | Cooper Mk X / Norton 515cc 1cyl | |||
| Dick Gibson | UK | Cooper T43 / Climax 1496cc 4cyl | |||
|
Doc Langley |
NZ | Austin-Healey 100 / Austin 2660cc 4cyl | |||
|
Ken McMillan |
NZ | Austin-Healey 100 / Austin 2660cc 4cyl | |||
|
Bill Gerrard |
NZ | Gerrard 90 / Austin 3459cc 6cyl | |||
| Ian Mackellar | NZ | Cooper T39 / Climax 1098cc 4cyl | |||
| Bruce Wood | NZ | Staride 52 / JAP 497cc 1cyl | |||
| Ret | Frank Cantwell | NZ | Tojeiro 3/56 / Jaguar 3442cc 6cyl | 32 | Accident |
| Ret | Ron Frost | NZ | Cooper T41 / Climax 1498cc 4cyl | 28 | Spun |
| DNS | Johnny Buza | NZ | HWM / Alta 1960cc 4cyl s/c | ||
| DNS | Reg McCutcheon | NZ | Normac Special / Chevrolet 3870cc 6cyl | ||
| DNS | R G Levick | NZ | Cooper / Norton 515cc 1cyl |
Fastest Lap: Bruce McLaren 1m 14.8s

Grid: (* denotes Pole)
Bruce McLaren*
Ross Jensen
Ron Roycroft
Merv Neill
Ken Harris
Ron Frost
Gavin Quirk
Johnny Mansel
Tony Shelly
Roly Crowther
Bob Gibbons
Result |
Driver | Nat | Car / Engine | Laps | Time |
| 1 | Ross Jensen | NZ | Maserati 250F / Maserati 2497cc 6cyl | ||
| 2 | Ron Roycroft | NZ | Ferrari 375 / Ferrari 4493cc V12 | ||
| 3 | Bob Gibbons | NZ | Lycoming Special / Lycoming 4733cc 4cyl | ||
| 4 | Merv Neil | NZ | Cooper T39 / Climax 1498cc 4cyl | ||
| 5 | Bruce McLaren | NZ | Cooper T43 / Climax 1750cc 4cyl | ||
| 6 | Gavin Quirk | NZ | Maserati 250F / Maserati 2497cc 6cyl | ||
| Ret | Ken Harris | NZ | Ferrari 750 Monza / Ferrari 2999cc 4cyl | ||
| Ron Frost | NZ | Cooper T41 / Climax 1498cc 4cyl | |||
| Johnny Mansel | NZ | Alfa-Romeo Tipo B / Alfa 2905cc 8cyl s/c | |||
|
Tony Shelly |
NZ | Jaguar D-type / Jaguar 3442cc 6cyl | |||
|
Roly Crowther |
NZ | Lotus 11 / Climax 1098cc 4cyl |
Fastest Lap: Ross Jensen 1m 27.1s (Record)