Father's will be treated to a free sports car fest at Phillip Island during Round 5 of the Vodka O Australian GT Championship, which will he held on Fathers Day September 4.

Event promoters will throw open the gates for all fathers to spend a relaxing Sunday on the Island watching some of the worlds most exotic sports cars at full flight around the magnificent Phillip Island circuit.

Drivers in the Vodka O Australian GT Championship will also get the chance to etch their names in motor racing history as the CAMS Australian Tourist Trophy title will be up for grabs.

Mark Eddy, Klark Quinn, Dean Grant and Greg Crick are all within striking distance of the Tourist Trophy Title, which is decided by the driver than accumulates the most combined points from the Eastern Creek and Phillip Island rounds of the championship.

Eastern Creek round winner David Wall is not competing at Phillip Island, leaving veteran Tasmanian steerer and Dodge Viper pilot Greg Crick in the box seat to take home the prestigious honour.

"To be part of a group that contains the names Moss, Stillwell and Geoghegan would be an incredible honour and I'll be doing everything I can to take the trophy home," said Crick.

"Dean, Mark and Klark will be very hard to beat at Phillip Island, but the Viper is pretty strong when it comes to the long flowing circuits, so hopefully I can hold them out and win the "TT".

Beginning in 1956, The CAMS Tourist Trophy has taken many forms from being awarded to Australian Sports Car Champions, Production Sports Car drivers, and now the Australian GT Championship.

The Tourist Trophy was not awarded between 1980 and 2006, but SPHERIX Manager Craig Denyer said he was glad it was back.

"It's great for a high profile category like the Vodka O Australian GT Championship to have its own piece of history to race for," he said.

"Any name added to the Trophy will join a long list some very high profile and famous drivers, and will be a well earned reward."

"I'm expecting our drivers to put on a great display and with our fans being given the opportunity to participate in a grid walk before both races and get really close to the cars and the drivers it should make for a great weekend."

Round five of the Vodka O Australian GT Championship takes place on September 3-4 at the Phillip Island Grand Prix Circuit with two one hour races, including pit stops and driver changes.

Racing begins at 9.30 each morning with ticket prices ranging from $10.00 for adults to $20.00 per family, while Dad's with their kids will get in free on Sunday to celebrate Fathers Day.

The Vodka O Australian GT Championship is a National motor racing series pitting some of the world's most exotic and exciting race cars against each other in a mix of sprint and endurance race formats on some of Australia's most challenging circuits including Mt Panorama Bathurst, and the Adelaide Parklands Street Circuit for the Clipsal 500