Hey all,The motor in my bf xr8 has become slugish, struggles to move, makes a mad ticking noise (sounds like tappets) now and when it is dark outside, i lift the bonnet start the motor and i can see a spark going between the rocker cover and head. Would that be coil packs? The car is coming up to 115000 km, it must be true what they say, buy them new and get rid of them before 100000km. I don't know much about new cars, i'm use to driving old falcon/mustang V8's. Nothing like this thing.