Infiniti Q50 Eau Route VettelInfiniti director of performance (and multiple F1 World Champion) Sebastian Vettel has conducted secret evaluation tests of the much-anticipated Q50 Eau Rouge prototype, the firm has revealed.

Vettel drove the 560hp Nissan GT-R-engined car at the Millbrook Proving Ground in Bedfordshire, to assess “performance, handling and driving precision”.

(Millbrook is an annual SMMT Test Day-themed haunt for many a motoring journalist; Motoring Research, you may remember, also spent a night there late last year – and subsequently joined Vettel in the FIA record books…)

Seb’s feedback, says Infiniti, “will be engineered into the next stages of the prototype’s extensive development programme – testing components, packaging and viability”.

That last word is revealing: it seems that Infiniti is serious about creating a Q50 Eau Rouge but still hasn’t decided if the project is viable yet. That’s despite it confirming it is undergoing a “full schedule of prototype testing and evaluation”.

Here’s hoping Vettel’s words can help swing the balance.

We don’t have too long to wait until we hear more, though: Infiniti has said it will reveal further information on press day of the 2014 Beijing Motor Show in April 20th. For now, check out the teaser video…