Alfa 159, Brera & 946 Spider
Driving up the a1 (m) . had the current mpg displayed. It dropped to about 27 while I was cruising along at approx 2000 revs in 6th when I released the gas pedal turbo dropped to zero.
Proving. the car was regening.
Lasted about 10 mins.
Once it had completed current mpg back to normal 43...