British A-lister couple David and Victoria Beckham are just settling into their magnificent new $72m waterfront Miami home – but they’ve got a way to go to match the wealth of their son Brooklyn’s new inlaws. And they are feeling the difference in financial clout as they try to keep up with billionaires Nelson and Claudia Peltz who own a $148 million property in the Florida city, RadarOnline can reveal. Actress and model Nicola Peltz, 29, married wannabe chef Brooklyn, 25, in 2022. The Beckhams are worth an estimated $500m and are keen to boost their fortunes still further off the back of Davi…