Proton KR unsure of V5 debut.

The Oxfordshire-based Proton KR team may give their new 990cc four-stroke machine its MotoGP debut at Le Mans after further testing this week.

Ulsterman Jeremy McWilliams was scheduled to continuing testing the bike tomorrow (Tuesday) before any decision was made about what he would ride at the Polini French Grand Prix.

The team may take both the new four-strokes and their two-stroke 500cc three cylinder machines to Le Mans for McWilliams and Nobuatsu Aoki to ride before making a final decision.

McWilliams was full of praise for the new machine after a shakedown test at an aerodrome near their Banbury headquarters last week.

"It's going to be a late call and there is no point in racing the bike until it's ready," said a motivated McWilliams, pictured with Goldie and Meg Mathews at Jerez.

"We have been hammering the daylights out of the engine and it's good. It feels really smooth and quick and it's a beautiful machine and I can't wait to race it. These are just shakedown tests and we will have to wait and see if it will be ready for Le Mans," he added.