Another day, another ruinously expensive, screen-free, roofless and, some will say, useless sawn off supercar. Another thing the McLaren Elva has in common with Aston Martin’s V12 Speedster is that they’re not all sold, despite McLaren cutting production from the original 399 units first to 249 and now just 149. The £1.425 million list price, nearly twice the price of the rarer Aston, may have something to do with that. And I like the Aston’s looks more than the Elva’s too.