Another perfect day for testing, and so went out this morning for about 5 miles, and then again with my daughter later in the afternoon, about another 5 miles. Issues found so far are that the speedometer doesn't work (but the odometer does, so it's not the cable), and a loud squeak-squeal from somewhere that sounds like the instrument panel, so that may be the speedo cable. Doesn't sound like brakes or bearings, the sound is almost in the cockpit. We'll have to have a look.
Drives well, though, just a pleasure.
The second ride, with my daughter, was her "thank you for being a such patient helper" ride, and she loved it. Dreaming is one thing, it's always nicer when they come true. Her 'booster seat' fit right in and the seatbelts fit perfectly. One amusing comment was that it was all "really 3D!"