Today was the day we finally got to see the end result of one of the longest running sagas in recent motoring history: the final production launches of the co-developed Toyota GT86 and Subaru BRZ rear-drive coupés.

For me, it is the Subaru version that holds the most intrigue. The firm is famed – and perhaps still thriving – thanks to its all-wheel drive and turbocharging technology, yet the BRZ has neither.

What it does have though is an engineering layout that promises a driving experience significantly different to the Subaru norm. Speak to anyone on the Subaru stand and the 'pure handling delight' message is rammed home as the BRZ's brand statement.

Yet when I think performance Subarus, I think of Richard Burns and Colin McRae taking their highly tuned, yet ordinary looking Imprezas to victory in the World Rally Championship. To me, a performance Subaru needs a healthy slug of extra power as well as the engineering integrity. Otherwise, why not just save a few thousand pounds and buy the Toyota version?

So that's why I'm still more excited about the Subaru BRZ STI concept revealed in LA a fortnight ago or the monumental Japanese GT-spec BRZ racer that was elsewhere on Subaru's Tokyo motor show stand today.

These models show a desire within Subaru to deviate from the seemingly Toyota controlled project and make something above and beyond the original back to basics approach.

The Toyota GT 86 and Subaru BRZ need to take very different roles in the market with their own USPs if they are to both be a success, rather than identical 197bhp machines.

While the Toyota will always hold the greater appeal as an entry level sportster, the BRZ will really pique my attention when the go-faster STI model is launched. Just a shame then the packaging of the engine prevents a turbo or all-wheel drive system ever being fitted.