Established in 1995, Scott Aho purchased the business from the founder in 2007 and quickly expanded the product range and re-engineered many of the products with many hours of product testing and development. Mad Dat Motorsport / MDR is located at Mount Barker - just a 40 minute drive up the freeway from Adelaide’s CBD in the Adelaide Hills of South Australia.

Performance, Race, Rally & Custom Fabricated parts for Nissan Datsun and other brands

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We offer a one-stop-shop for all things custom-made to performance products you know and trust. Aside from producing kit-form products and offering a mail to your door service Mad Dat Motorsport also performs many complete ground-up car builds. We have been supplying products to many customers around Australia and the world for many years and are always happy to fill international orders.

We specialise in Nissan and Datsun parts, race car fabrication including roll cages (ROPS) and preparation, custom conversions of suspension, engines and gearboxes, aluminium and sheet metal fabrication, exhaust headers and system, custom radiators and all plumbing, and making and testing hydraulic clutch and brake hoses to suit a range of makes and model vehicles.

We're not a production-line manufacturer, we take pride in producing quality Australian-made parts, while offering a personalised approach to each project we have in our workshop.

I previously had a L series fitted in my Datsun 1600 and wanted to convert to a recently purchased SR20DE Autech. I approached Scott at Mad Dat and he was super professional and helpful. I took my car to his workshop and picked it up ready to go - the fitting is really neat and everything fits really well. I am really happy and will be getting him to modify my rear suspension and diff next. by Tory Tassone - Datsun 1600

Scott Aho has been designing and manufacturing custom parts for most of his life and is the senior fabricator at Mad Dat Motorsport. Scott has great skill in design, machining, welding and fabrication and is also a very poor excuse for an office biatch. Scott is also very active as a racer and crew member for various race teams and assists with pre-track setups, track day testing and race weekend track support.

Paul Tomkinson is our head mechanic and our guru for all things technical. He has an obsession with anything that has an engine and wheels so spends much time watching, reading or following motorsport - much to the annoyance of his wife. Paul has a vast history in the automotive world and has worked for over 22 years in the industry. Much like Scott, Paul isn't great in the office - his phone skills are acceptable but the one-finger typing isn't cutting the mustard. Paul has an eye for detail and great pride in his work, so whether you are looking for a simple logbook service, general automotive repairs or race car manufacture, Paul has the experience to get the job done.

Professional service and the highest quality parts. I use them on my competition car and can trust they will hold up to the punishment - Haydn Clark

Anne Tomkinson is Paul’s better half and comes in to clean up our mess and fix our office mistakes part-time as well as running her own business. She comes from a graphic arts background so is the guru behind our social media accounts and website zhuzhing, lucky she can touch type or this website would never have been finished. Anne has a warped sense of humour so please direct all complaints about social media to her.

Maddat Workshop

Mad Dat Motorsport also supports local events and the NDCC through sponsorship and a few cars which are used as a test bed for our new products before releasing for sale.

As a ‘no longer 21 year old’ female car enthusiast, it’s hard to find an auto repairer that doesn’t talk to me like I have dementia! MDR not only #fixeditfirsttime but they also provided a genuinely awesome customer experience #customerforlife #youguysrock - Jackie B