Victoria Beckham has insisted she “came from a working-class background” as her father had a white van as well as a Rolls-Royce. The former Spice Girls singer, 50, who has a joint estimated fortune of £455 million with her ex-footballer husband David Beckham, 49, was mocked when she declared in the four-part Netflix documentary ‘Beckham’ she was “very working-class” despite being driven to school in her dad’s luxury car. It saw David ordering Victoria to “be honest” and repeatedly asking her what car he dad drove her to school in when he overheard her saying she came from humble roots – while …