A Cabriolet and a diesel model based on Cowley's successful new Mini will roll off the production line within the next few years.

BMW has produced computer concept designs of what new versions of the Mini could look like - including a version based on the old Morris Traveller estate.

The company has confirmed a diesel model is planned, likely to go into production in 2003, followed by a convertible.

Other designs which could be made include a five-door version, along with a pick-up which appeared at the Paris Motor Show last year as a concept car. Computer-generated designs for some of the potential new models were leaked from BMW's Munich headquarters.

Mini spokesman Mark Harrison said the new models would be made at the Oxford plant, which will have produced 30,000 Minis for the UK and overseas market by the end of the year.

The versatility of the Mini chassis meant the car had a great deal of potential for future development, but it was "pure speculation" which of the concept versions might see the light of day.

However, he added: "Whatever we do, it will be as much fun to drive as the current car."

Next year, BMW aims to produce 100,000 Minis. There are 4,000 people employed at the Cowley plant, and BMW is also introducing a weekend shift staffed by 500 people.

**Fans of the new Mini will get a chance to speak direct to two of its top executives tonight (Thursaday) about the design and development of the car. The live video chat takes place on the Mini website -- www.mini.com -- from 5pm to 6pm.