Spy alert - Renault's 2017 challenger spotted!

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Seen prowling the Enstone lot this week (yes, it was sunny and warm in Oxfordshire) was Renault's 2017 title contender!

We note the mandatory 2017 large tyres but we're unsure about the narrow track and short wheelbase, although it may work wonders around Monaco's tight and twisty urban layout.

F1i has also learned that Renault has written to the FIA to inquire about implementing its own interpretation of the Halo cockpit safety device. To which Charlie Whiting answered: "I'd rather have a look at your suspension system.."