Gordon Murray’s T.25 city car concept seems to be doomed. First, it looked like the pair would see production next year. Then Yamaha made a concept for the Tokyo Auto Show using Murray’s iStream build process. Now, Shell and Geo joined in to “totally re-think” the 2010 car, but still won’t put it into production.

The collaboration is called ‘Project M’ and will result in a concept built from the ground up using Shell’s lubricants and Geo’s engine technology to complete Murray’s iStream chassis.

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Geo Technology is the brainchild of Osamu Goto, former Director of Honda F1, R&D Manager at Scuderia Ferrari F1 and Member of the Board at “a Sauber-owned company,” so in essence, the guy knows how to built a freakin’ engine. Shell filled it up with a low viscosity engine oil developed for this purpose and the package was good enough for 97 British mpg over the Brighton-London course.

Shell says the concept lubricant also reduced urban-cycle fuel consumption by “up to 6.5 percent.”

If you’re thinking that apart from driving a Murray-designed automobile that doesn’t cost $12 million, this could also be the smarter Smart we’ve been waiting for since 2010, I’m afraid I have some disappointing news:

The Shell car is not intended for production, but to inspire thinking about how the efficiency and utility of a car with a relatively ‘simple’ conventional gasoline engine can be maximized for city use around the globe and also to prove the benefits of ground-up engineering collaborations.

We feel your pain, Mr. Murray.

In case you’re tired of waiting and would like to build your own, be our guest:

Photo credit: Gordon Murray Design, Geo Technologies and Shell

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