Carlton Communications Plc shares took another big hit yesterday, off 57.5 pence at 615p on news that it had agreed to sell its Cosworth Holdings racing engine subsidiary to Vickers Plc for only UKP163.5m, UKP80.5m in cash and the rest in paper: that started the rout because analysts had been looking for rather more, and the tumble accelerated ast the company described growth for the first four months of the current year as only respectable.