Nope it happened on the road yesterday. I took the car out as I had a local meeting for work in Milton Keynes so I could fill up before the Bedford track I was due to attend today.
In 4th gear accelerating it started misfiring, then engine management light flashing and finally very loud metal on metal ticking noise that increased with the revs. I was five roundabouts away from APR so took it straight there, will find out next week what the damage is