It's a good game this ... I recently bought a car through CarWow ... I got 20.7% off list, so a good deal ... the discount included £1k manufacturer's contribution if I took out 0% finance deal which I will do.
I now have to put down about £5K deposit which I'll do with a new 0% credit card and I'll invest the cash I would have used in a 5% interest account. The monthly payments for the next year will also be paid by said credit card and I'll invest that money in a 5% interest account too. At the end of 12months I'll do the same again and (hopefully) get a bonus for switching the current account and get another 0% credit card. At the end of that period I'll probably pay off the car with cash and interest earned ...
The car's for Mrs ATTAK Z so she's happy, I've saved money and will make money on the investment, so I'm happy, and I've sold the old car privately for a good price which has already been invested. Also the new car is zero road tax if it's registered before April (which it will be)
So that's a WIN WIN WIN WIN WIN WIN situation if my calculations are correct ...happy days
ETA and I get 0.5% cash back on all credit card purchases ...