I have about 1200 miles on my Justa, and I've noticed a slight speed surge at highway speeds; the rpms are constant but the car surges ever so slightly every 2-3 seconds when I'm trying to maintain a constant speed. This occurs both with and without cruise control on - and my highway driving is usually at 75-80 MPH when this occurs.

Planning to take it in sometime this week- but was wondering if anybody has experienced anything similar?