Have a look at www.bgprod.com . We use it on all services. Have a look at their guarantee, it suggests that they have confidence in their product.
They have run a similar scheme in US for a number if years.
I was offered this last week and could not refuse at the price. It even came with 9 months tax and a full tank of diesel. I had no intention of keeping as Steve had asked me to look out for a motor for him. Only problem is that now that I have driven it for a few days, the lads at work think that he...