hi there, i have been experiencing some strange behaviour from my 97 e320, it only has 65000 km on it. when cruising and then trying to accelerate hard, for instance going to wide open throttle when merging, the car seems to lose power as the revs approach 4000, and then right at 4000 there is a hesitation that almost feels like hitting a rev limiter. the acceleration tails off before this occurs, almost like the throttle is only 1/3 way open instead of wide open. if i accelerate from a standstill, the engine will rev to red line, but there is a loss of power. the car is very low mileage and has been babied... major service was performed a couple years ago, but the car has only been driven about 15000 km since then, if that. (under 10k miles). does anyone have any idea what the problem might be? the engine feels completely normal in everday driving shifting at 3000rpm and below, no loss of power or anything.