In the early 1970s Geoffrey A. Williames developed a new concept for a safer tractor with a low centre of gravity, four-wheel drive and front-mounted equipment. A prototype was tested in 1971. The Williames Wildcat was subsequently built by G.A.W Design & Construction Pty Ltd at Warragul in Gippsland, Victoria. The first twenty Wildcats were fitted with a Sachs-Wankel rotary engine. The Wildcat was the first Australian production tractor design to use front-mounted equipment which included a blade, slasher, hoe and tiller. Subsequently, a 30 horsepower V4 Wisconsin petrol engine was fitted and 180 Wildcats were manufactured before the company ceased trading.

Williames formed a new company called Williames Hi-Tech International in 1975 to make specialised machinery for high-value crops. Production of an improved Supercat version continued. The Wildcat design was also developed by Toft Bros Industries Ltd in Bundaberg, Queensland as the R1000 fitted with a VM air-cooled diesel engine. Twenty R1000 units were built from 1975 to 1981. The Austrak RT-45 was also developed from the Wildcat design and was built in Melbourne by Australian Tractor Industries Pty Ltd (Later Austrak Industries Pty Ltd) between 1978 and 1986.

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