The Autumn Trial was held on July 1 having been postponed from June 10.
Combine-6 Round 4 (originally Round 3) – 1978 VADC Autumn Trial
The VADC Autumn Trial was directed by Dennis Wood and won by Allen Roberts and David Johns in a Mazda.
1978 Autumn Trial
Results and entry list
| Place | Driver | Navigator | Car | Points |
|---|---|---|---|---|
| 1 | Allen Roberts | David Johns | Mazda | 47 |
| 2 | Harria Larter | Phil Gallacher | Cortina | 51 |
| 3= | John Bramman | Jim Davis | Escort | 53 |
| 3= | Alan Hartney | Peter Whittle | Renault 16TS | 53 |
| 5 | Mike Dunn | John Layton | Datsun 1600 | 57 |
| 6 | Bill Orders | Geoff Rockingbird | Cortina | 58 |