David Coulthard raises concerns about Sergio Perez after Bahrain pre-season testing

David Coulthard has suggested that Sergio Perez’s break from Formula 1 could leave him playing catch-up to Valtteri Bottas at Cadillac this season. Cadillac went into testing under the microscope, with plenty of questions about what they’d managed to put together since being given less than a year to build an F1 car.