He is the son of well-known driver training instructor Ian Luff.

He currently co-drives for Team 18 in the Repco Supercars Championship with Scott Pye in the No.

After starting in the Improved Production category in the early 1990s, he progressed to the Australian Super Touring Championship in 1997 & 1998 and his V8 Supercar debut was at the 1999 Queensland 500.

On 16 September 2012, Luff won his first ever V8 Supercars race, teaming up with Vodafone's Craig Lowndes at the Sandown 500.

On 7 October 2012, Luff and Lowndes finished 3rd in the Supercheap Bathurst 1000, the 50th running of the event, where their car ran special Peter Brock livery to commemorate the history of Bathurst and Lowndes' mentor.