By Yadarisa Shabong

(Reuters) - Aston Martin announced the debut of its new limited edition sportscar Valiant on Wednesday and said deliveries would start in the fourth quarter, as the British carmaker aims to revive falling sales and become cash flow positive.

The company will produce only 38 units of the Valiant, a vehicle designed by the Aston Martin team alongside Formula One driver and two-time world champion Fernando Alonso.

The retail price of the Valiant is about 2 million pounds ($2.54 million), excluding tax in the UK, a source close to the company told Reuters.

All the units have been pre-sold, according to the company.