The 2014 Sydney NRMA 500 was a motor race for V8 Supercars held on 5 to 7 December 2014. The event was held at the Homebush Street Circuit in Sydney Olympic Park, New South Wales, and consisted of two races of 125 kilometres and one race of 250 kilometres in length. It was the final round of the 2014 International V8 Supercars Championship, and marked the V8 Supercars return of Two Time Series Champion Marcos Ambrose.
Will Davison scored the first pole position for Erebus Motorsport after qualifying for Race 36 was suspended with a minute remaining. Champion drivers Craig Lowndes and wildcard entry Marcos Ambrose both drove into the wall at the infamous turn 5, causing the red flag. 2014 series champ Jamie Whincup took the lead from Davison at turn 1 on the first lap. After pit stops, Walkinshaw Racing's Tim Slade took the lead and led for the majority of the race. With a few laps remaining, Whincup reclaimed the lead and won the race ahead of Slade. Rod Nash Racing's David Reynolds finished third, scoring his first and only podium finish of the season.
The weather had overshadowed the start of Race 37, possibly recreating a repeat of the 2010 event. The rain held off at the start of the race as Whincup shot from 4th on the grid to the lead after turn 1. Ambrose had a shocking start to the second race after being spun around on turn 1. The safety car was deployed on lap 19 after torrential rain proved hard for the drivers, too hard for David Wall who didn't change for wet tyres and collected the wall at turn 2. Soon after, the race was red flagged after lightning and thunderstorms rolled in. The race continued under the safety car after the rain died down. Time expired on lap 23 and Whincup was declared winner, claiming back-to-back wins on Saturday. Shane Van Gisbergen and Scott McLaughlin rounded out the podium placings.
After Sunday's Top 10 Shootout, McLaughlin scored pole position for the final race of the season. He and Whincup managed to score the most pole positions of the season with 10 apiece. The final race started on a wet track with Garth Tander taking the lead after the first turn. Mark Winterbottom's quest for second in the championship ended early after driving straight ahead at turn 1 on the first lap. At the half-way mark, the race was again overshadowed by severe thunderstorms. A lap before the safety car was called out, Tander drove straight ahead at turn 9 and handed the lead over to Van Gisbergen. After 44 of 74 laps, the race was suspended and later called finished after more torrential rain battered down on the circuit. Van Gisbergen, again proving that he is the master in wet weather, took the win for the final race of the season. For the second event in a row, Tander narrowly missed out on a race win and had to settle for second position. Teammate James Courtney made it a 2-3 finish for the Holden Racing Team.
Whincup collected his sixth championship trophy, a new record for the most championships in the ATCC/V8 Supercars. The race win for Van Gisbergen gave him a personal best championship position of second place. Winterbottom held on to finish third in the championship after a disastrous weekend in Sydney.
After nine years since his last V8 Supercar event, Marcos Ambrose finished 20th, 21st and 16th respectively in the three races.