There is no misfiring noticable but have it booked in to a diagnostics garage tomorrow.
I have also had a problem with the auto gearbox slipping out of gear (and staying in 2nd!). A warning orange box with zigzags appears on the instrument panel and a warning beep sounds. Once I stop the car, turn engine off and restart it it goes back to normal!
Hopefully, I'll get some answers - if not the spark plugs and
will be next.