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Round Four kicks off in just over 12 hours, and it's looking like the biggest iRace meeting yet.

The round, to be held at Sydney's Oran Park, on the GP layout, will feature racing by all the iRace categories: Formula Tasman & LeMans Sport, Touring Car Challenge, Muscle Division, Production Racing Cars and RocketSports. Additionally, the round will see the debut of the brand new HDT Cup category, and the inclusion of the MX5 Challenge.

The Independent Race Series prides itself on mate against mate racing, and catering for a diverse range of competitors and cars. This round will feature a number of notable competitors:

Andrew Macpherson will be driving the awesome Mosler MT900GTR (pictured right) in the combined LeMans Sports and Formula Tasman category. He'll be up against lady racer, Michele Guyer in her March Formula Holden and Ed Singleton (who made quite an impression in Muscle Division in his last appearance) in his Radical. Chris Farrell will driving his 2001 Swift Formula Atlantic, which should suit the GP layout very well. The Formula R boys are also back, and always push hard.

In the Touring Car Challenge, Darren Saillard will be the man to beat, but Andy Cantrell (pictured left) will be looking to do just that, after being narrowly defeated at the last outing at Oran Park. Friend of the series, David Towe will take the wheel of the ex-John Bowe Mustang, and will no doubt adapt quickly from his light BMW M3 to the hulking V8 Mustang. Steve Ingwersen will be keen to make an impression in his Commodore V8 Supercar, and Joe McGinnes is always spectacular!

RocketSports will be joined by the MX5 Challenge for this round, with nearly 20 of the nimble handling Mazdas in the field. The Holden Roadster brigade have been working on the handling of their cars, and Rod Moynahan, Clive O'Connor, Graham Smith and Terry Mayfield (pictured right) will be battling it out. The MX5 Challenge will also have two standalone races on Saturday.

The Production Racing Cars category has gone from strength to strength. The affordable and accessible nature of the machinery, and the closeness of the racing has really driven that growth, and this round looks to be the biggest yet for the category. Pushing hard for a great result will no doubt be Anthony Soole. He'll be challenged by Richard Mork, an Oran Park expert. Hans Riehs always goes hard, and will be doing double duty this weekend, driving his BMW Mini as well as a HDT Cup car. The girls will be well represented too, with Carly Black doing a great job in Class B, and Candace Shafell returning to Class C. Kylie Willmington (picutred left) will be making her debut in a former championship winning car. Kylie's husband, John is currently leading the Class C championship, and we've received some inside information that Kylie will give John a serious run for his money. Kylie has secured support from Caltex Depot, Jax Tyres Penrith and Penrith Muffler Man, and will be driving a Nissan Pulsar.

And last but by no means least is Muscle Division. Muscle Division will feature the largest field at this round, and will incorporate the brand new HDT Cup category. Muscle Division has seen RX7s run strongly in previous rounds, but they are yet to take a round win - Alex Hay, Gerry Murphy, Brett Morse, Keith Linnell and Steve Anslow will all be looking to rectify that this weekend. Previous round-winner Howard Glinn will be back in his Dolomite Sprint, and watch out for a round long battle between him and Neville Simmons like we saw at the last round. The big story of this round though is the HDT Cup. A category that was only conceived after the last meeting at Oran Park in May, HDT Cup has generated massive interest, and sees a massive TWENTY cars entered for the first outing! Watch out for strong performances from Todd Betland (pictured right), Hans Riehs and Chris Reeves, and the no doubt numerous dark horses, new to the series.

Practice gets underway at 0930 Friday, with Qualifying from 1330. The first of the races will take place from 1510 on Friday afternoon, with the bulk of the racing resuming at 0900 Saturday. The full schedule is available to download here.

Admission for spectators is free on both days. The pits are accessible, and the teams friendly, so come along and check out the Independent Race Series.

Round Four of the Independent Race Series will take place this Friday and Saturday. The event will feature Practice, Qualifying and three Races on Friday 14th August, and the remaining 19 races will take place Saturday 15th August.

Admission to the circuit is free.

Download the event schedule here.

Download the Meeting Regulations here.

Round Four of the Independent Race Series is just over one week away, and the excitement is building about the return of iRace to the fantastic Oran Park venue.

Entries have been rolling in for the event, and it's looking like some healthy fields will be in attendance, the standouts being Muscle Division and Production Racing Cars.

In Production Racing Cars, most of the guns from Round Two are back, and this time out they'll be joined by Graham Lusty in an XR6 Turbo Falcon, and Bryan Fitzpatrick will return in his nimble Renault Clio. Look out for some hot action from this group.

Muscle Division has been swelled by the inclusion of the HDT Cup within the ranks, with plenty of excitement and enthusiasm surrounding the new category. Perhaps one of the most excited is Todd Betland. His Commodore (pictured right and below) has been decked out in Peter Brock colours and livery. Aside from being a gun racing driver, Todd once starred in a Fair Dinkum Sheds commercial alongside Peter Brock. Todd's HDT Cup car is a fitting tribute to the Australian motorsport legend.

Todd will be joined by a number of other competitors who are still waiting for the paint to dry on their racing machines, including Robert Marchese. Robert's car (pictured left) still has some finishing touches to be completed, but he is very keen to get on track.

Other categories in action will be: Touring Car Challenge, Formula Tasman and RocketSports.

The full round schedule will be available shortly. Round Four of the Independent Race Series will take place on the GP layout at the Oran Park venue, with action kicking off 14 August, and concluding 15 August. More information on the round is available here.

For spectators admission will be free. For competitors, entries are still open, so if you want to enjoy this awesome venue, get your entry in asap.

The recent iRace Open Day saw a number of cars present for the launch of the brand new HDT Cup. Interest in the new category has been very strong, and a large number of competitors have already acquired new racecars to compete in the category.

One competitor getting right behind the category is Todd Betland. Todd and his father Laurie have acquired a Class A car, featuring a 308 V8, a Tony Edwards Ultra High Performance brake package, strengthened M21 transmission, Pedders suspension, and a very famous livery. The guys have painted the car in Brock colours, and will shortly be adding signage to match.

The HDT Cup will be supported by HDT, and will cater for VB, VC, VH, VK and VL Commodores, with classes for different engine types/capacities.

Competitors interested in the HDT Cup can contact Laurie Betland on 02 4860 3333 or 0411 176 382.

Photos from the Open Day at Marulan Driver Training Centre are available here.

The next round of the Independent Race Series is in just under one month, at Oran Park GP circuit, 14-15 August. Get your entries in now!

The SBS Speedweek coverage from Round Two at Oran Park screened on the weekend. The full episode is expected to be available from the brand new Speedweek website in the near future, but in the meantime, an excerpt from the program is available now.

Click here to view the video.

Click here to check out the excellent Speedweek website.

An iRace Open Day will be held at Marulan Driver Training Centre Saturday 20 June, and the next round of the series will be at Oran Park 14-15 August 2009.

Round Three of the Independent Race Series scheduled for 19-21 June at Morgan Park has been postponed.

With thanks and acknowledgement to those competitors who had shown their support for the round by getting their entries in, the organisers took the step of postponing the event due to insufficient competitor support. The series plans to shift the event to a date sometime in September or October. For all those competitors out there who want a chance to race at the fantastic Morgan Park layout again in 2009, it's up to you to get behind the event, get your entries in when they open, and encourage your friends and fellow competitors to do the same.

Because we know many of you need your regular speed fix, Marulan Driver Training Centre (MDTC) has stepped up to host an iRace Open Day at the facility on 20th June. The day will feature a "better your best time" track day for production-based cars plus passenger rides as well as a public launch of the HDT Cup with displays and a presentation on the new category. Visit the MDTC website: www.mdtc.com.au for more info, and to register your interest for the iRace Open Day.

Entries for Round Four at Sydney's Oran Park are now open. The round is scheduled for 14-15 August, and will be hosted on the GP circuit. To access the Round Four online entry form, click here. To download the form to fax or mail in, click here.

Speedweek has put the World Wide Web on the rev limiter with the launch of the new Speedweek Internet site.

The solid alliance between SBS and Speedweek has taken yet another step forward with the launch of what both groups feel will be one of the bench mark internet sites in this country for motor sport fans.

The site at Speedweek.com.au includes full Speedweek program replays as well as segment highlights and bonus footage not aired in the program, which gives Web surfers the ability to view a replay of the program at their leisure.

The first installment of Independent Race Series coverage is already available on the new site, click here to view.

The next installment of the Independent Race Series will screen this Sunday on SBS Speedweek. Check your local guides for details, and check the new website: www.speedweek.com.au for the online version in the near future.

The Independent Race Series' newest category, the HDT Cup, has generated massive interest, before even turning a wheel.

Production Racing Cars hard-charger Hans Riehs has purchased a car (pictured) from South Australia, and a number of other competitors are believed to be in negotiations to acquire cars.

Hans purchased his car from Gary Baxter, who has several other cars available for around $2500 - Bargain Motorsport!! Gary can be contacted on 0418 832 664, or gary@trackskill.com.au

The HDT Cup will be supported by HDT, and will cater for VB, VC, VH, VK and VL Commodores, with classes for different engine types/capacities.

A meeting to launch the category is scheduled for 5 June, at 5pm, at the Super Hoist Plus HQ - Lot 3 Sagewick Place, Moss Vale (off Lackey St). Interested competitors should contact Laurie Betland: 02 4860 3333 or 0411 176 382.

With thanks to John Smith of Photos 'n' Things, more photos from Round Two of the Independent Race Series have been added to the website.

Click here to view the full gallery.