hesitates

Hi, I have recently bought a 2004 LCR 225 for the missus, and for me to use at the weekend to take away the boredom of a company car!! I have a newbie question. Just after starting up the car seems to hesitate, almost feels like you have hit a rev limiter even though it's only at about...

Just started doing this...... Mk2 Toledo 1.8 20V Car is fine acceleration and performance-wise until I hit 65-70 mph, and then that's it. Went down to Yeovilton a couple of weeks back, and it was happily cruising along at 80-ish. On the return leg, hit the A303, and the damn thing started...