1998 Australian Drivers' Championship
The 1998 Australian Drivers' Championship was a CAMS sanctioned Australian motor racing title for drivers of cars conforming to Formula Holden regulations. The title was contested over a six round, twelve race series with the winner awarded the CAMS Gold Star. Officially the "Holden Australian Drivers' Championship for the CAMS Gold Star", it was the 42nd Australian Drivers' Championship.
New Zealand racer Scott Dixon won the championship driving a for SH Racing, to give the team their first ADC title after coming close to victory in 1997 with Jason Bargwanna. Dixon won five of the twelve races to finish ahead of Victorian racers Mark Noske and Todd Kelly. Noske and Kelly each took three race wins, with Simon Wills winning one, the first of his record 23 Australian Drivers' Championship career race victories.
Calendar
The championship was contested over six rounds with two races per round.| Round | Circuit | Date |
| 1 | Sandown International Motor Raceway | 1 February |
| 2 | Phillip Island Grand Prix Circuit | 19 April |
| 3 | Winton Motor Raceway | 3 May |
| 4 | Mallala Motor Sport Park | 24 May |
| 5 | Calder Park Raceway | 21 June |
| 6 | Oran Park International Raceway | 2 August |
Points system
Championship points were awarded on a 20–15–12–10–8–6–4–3–2–1 basis to the first ten finishers in each race.Championship standings
- Formula Holden regulations mandated the use of an approved Holden V6 engine.
- Race 2 of Round 5 at Calder was stopped due to adverse weather and half points were awarded to placegetters.