McLaren continues tyre programme on first day at Jerez

With wet conditions at the start of running in Jerez today, testing for Lewis Hamilton and Pedro de la Rosa focused on the continued Bridgestone Potenza tyre programme, initially using wet weather tyres. The track dried out late morning and work with the dry tyres resumed. Lewis was also concentrating on the rear suspension programme and Pedro continued with the front and rear wing work started in Barcelona last week.