The So Good soya milk's series of on-pack offers featured the chance to win a Mini Cooper.The Mini was featured on Tetra Rex 1 litre packs of chilled So Good in a free-to-enter prize draw.Martin Pamplin, So Good sales and marketing director, said: 'We have been keeping the soya milk fixture interesting for customers with a series of innovative on-pack offers.

The Mini Cooper was the largest.

Using Tetra Rex cartons provided us with lots of space on-pack to feature all the prize draw details and offers great on-shelf impact.'