Cheapest I have been quoted is £550 inc cliosport discount from Carnoisseur in Southend (Chris). Over a year ago I was quoted £480 cheapest (Applied Styling) but can't get hold of him and guess prices have gone up.
We also get club discount from Speedline themselves so might be worth emailing them and letting them know best price and see if they can match or beat.
Seems odd to me that dealers can sell cheaper than the company themselves.
And don't forget, if you get non Renault ones you can choose from White, Gold, Silver and Anthractite.