VAUXHALL has received a welcome response to its ecoFLEX Experience challenge to find the UK's greenest driver, since the competition went live last month.

It means entrants to phase one of the competition, which tested general knowledge of eco-driving, are a stage closer to winning the company's E-REV Ampera - Europe's first production Extended-Range Electric Vehicle - and the accolade of being crowned Europe's greenest driver.

Second phase entrants now have until June 11 to put theory into practice through a virtual driving course on an internet simulator.

Then, under the motto Green Drivers Wanted, they will test their knowledge and skills through further stages until one successful UK driver will win the chance to reach the competition final.

That's when reality kicks in and the UK finalist will pit his or her eco wits against rivals from 18 other European countries at a multi-day event in Sweden at the end of July.

The finalists will go head to head at the Sturup Raceway in Malmo where the greenest driver will then be named the ecoFLEX Experience champion and look forward to taking delivery of one of the first Vauxhall/Opel Amperas.

Entries are still being taken at .

Vauxhall now offers more than 50 different ecoFLEX models and has recorded just under 7,000 sales so far this year.