Chris,
I would second that about them being easy to drive, at least properly set up cars. I've not written about it or posted video (time!) yet, but I drove Malcolms GT40 at Donnington in the UK this past June. We had around 4-5 hours of track time and, once the rain somewhat stopped and I was comfortable in the car, I found it extremely easy to pickup and drive.
The last two sessions in the car I was feeling confident and felt I was picking the car up quickly as far as on track to driving it well and hard, although I would not since it wasn't my car. Malcolm's steered with either end easily, perfectly in my opinion, and was very predictable. I've driven a few other 40s, but this is the first one on track.
Jose, if yours is hard to drive or unnerving I'd invest a lot of time in chassis setup and getting everything just so, that is the key to going fast in any track car. A GT3 is a fantastic car, but a modern 40 should really have no issues keeping up unless the setup is wrong or the power is way down, or the weight is too high.
Gary, looks like Buzz's times were significantly faster than Dennis Olthoff with the Superformance Coupe. Interesting since Dennis has driven there a fair amount and the Coupe is not exactly brand new to competition events having been around awhile.
R