Aston Martin’s cheapest model takes a big step up into the 21st centuryIf you have a wad of cash to splurge on a luxurious and fast sports coupé but don’t want to follow the crowd into a Porsche 911, allow us to posit its brawling British rival.“We can’t think of another super-sports car that would make you smile more often” is how we described the second-generation Aston Martin V8 Vantage when we road tested it in 2018.We fell for its old-school V