This Roadster has 77k miles on it and is a "Sport" model. If I bought this it would be a daily driver. I did an extended test drive and noted two things and would appreciate feedback. This particular Roadster has a slight shimmy at about 35 MPH. It could have been as low as 20 MPH, I'm afraid I didn't notice the speed when I felt it. What I felt was a slight oscillation in the steering wheel until I got past a certain speed. The second thing I noticed was a clunk when transitioning between +/- amps at low speed. I got this to repeat with 100% repeatability. Approach a stop sign in traffic at less than 10 MPH and just a slight amount of pressure on the accelerator so I could transition from + to - current and it would clunk. I have the complete service records. It was serviced 6 months ago. Nothing suspicious. Anything to worry about? Thanks in advance.