A week after our conversation it transpires that four-time Formula One world champion Sebastian Vettel is slimming down his impressive car collection. Funny, he didn’t mention it. Vettel is known to have a keen interest in F1 history and when the big money started rolling in during his Red Bull heyday a decade ago, he acquired an ex-Ayrton Senna McLaren and a 1992 Williams raced by Nigel Mansell. Not that he’d ever confirmed it, because the 33-year-old German flatly refuses to discuss life beyond the F1 paddock. His absence from social media is so assiduously maintained it’s practically strategic.