NSW vs Victoria Interstate Challenge
Each year, an Interstate Challenge is held between the motorsport teams from the Mazda MX-5 Club of NSW and Mazda MX-5 Club of Victoria & Tasmania. The venue alternates between tracks in NSW and Victoria. A Perpetual Trophy is awarded to the champion Club.
| Year | Date | Venue | Champion Club |
| 2025 | 21 September | SMP Amaroo | NSW |
| 2024 | 3 November | Wodonga TAFE | Victoria |
| 2023 | 13 August | Pheasant Wood | NSW |
| 2022 | 21 August | Wakefield Park | Cancelled by track closure |
| 2021 | 22 August | Wakefield Park | Covid cancelled |
| 2020 | 7 March | Winton | Victoria |
| 2019 | 2 June | Wakefield Park | Victoria |
| 2018 | 14 April | Winton | Victoria |
| 2017 | 18 November | SMP Amaroo | Victoria |
| 2016 | 26 November | Winton | Victoria |
| 2015 | 29 August | SMP Amaroo | NSW |
| 2014 | 23 March | Winton | Victoria |
| 2013 | 3 November | Wakefield Park | NSW |
| 2012 | 30 June | Phillip Island | Victoria |
| 2011 | 23 October | Wakefield Park | Victoria |
| 2010 | 12 December | Phillip Island | Victoria |
| 2009 | 21 June | Wakefield Park | NSW |
| 2008 | 14 December | Phillip Island | Victoria |
| 2007 | 17 June | Wakefield Park | NSW |
| 2006 | 17 December | Phillip Island | Victoria |
| 2005 | 30 October | Wakefield Park | NSW |
| 2004 | ? | Phillip Island | Victoria |
| 2003 | 3 November | Wakefield Park | NSW |
