STOCKHOLM, April 26 (Reuters) - Scania , Europe's number four heavy truck maker, expects the European truck market to grow this year to around 260,000 to 270,000 units, its top executive said on Wednesday. "I would say that 2005 was some 250,000 (units) roughly, and I would say that it is probably (going to be) some 250,000 plus this year," Chief Executive Leif Ostling told a conference call after the firm issued its first quarter earnings report.