Wife bought me this when I had my Smart, cost a fortune in postage from the States, it fits on the inside of the windscreen of a 451 perfectly. If anyone is interested, £20 plus the cost of posting or collect for free if you are close to the Peterborough/South Lincolnshire area. See link below for more details on the item.
https://www.heatshieldstore.com/sun_...rt/fortwo/2008
https://www.heatshieldstore.com/sun_...rt/fortwo/2008