The 2025 National Sports Sedan Series, known as the Precision National Sports Sedan Reason after its title sponsor, is an upcoming motor racing series for Australian sports sedans. The series has very relaxed regulations allowing a broad range of custom-built racing cars to participate, with the proviso that they have bodywork resembling a road car. A national competition for sports sedans dates to 1976, and the present series to 2004.
The series is sanctioned by Motorsport Australia, and its naming rights sponsor is Precision International, a supplier of specialty parts for racing engines.
Calendar
The five-round series will consist of four rounds as part of the Trophy Tour, a new series of motor racing events organised by local clubs, racing circuits, and coordinated by Motorsport Australia, and a single round supporting the GT World Challenge Australia category organised by SRO Motorsports Group.
| Round | Circuit | Dates | Supporting | Map |
|---|---|---|---|---|
| 1 |  Sydney Motorsport Park
|
21–23 March | Aussie Racing Car Series Trophy Tour Toyota Gazoo Racing Australia Scholarship Series |
  SydneyThe BendWintonQueenslandPhilip Island
|
| 2 |  Queensland Raceway
|
30 May—1 June | GT World Challenge Australia GT4 Australia Series Radical Cup Australia Porsche Sprint Challenge Australia | |
| 3 |  Winton Raceway
|
22–24 August | TCR Australia Touring Car Series Australian National Trans-Am Series Touring Car Masters Formula Regional Australia Championship | |
| 4 |  The Bend Motorsport Park
|
25–26 October | The Bend Classic | |
| 5 | Phillip Island Grand Prix Circuit
|
21–23 November | Australian Improved Production Nationals Island Magic |
References
- Sergey (2024-11-14). "2025 Trophy Tour provisional calendar". Motorsport Australia. Retrieved 2025-01-13.
- Miles, Thomas (20 December 2024). "Big Precision National Sports Sedan calendar revealed". Auto Action. Retrieved 2025-01-13.