Alonso's take on driving a Nascar, he doesn't quite know what the deal is with these cars, but he was pretty fast overall.
Although live footage of the lap was not available, from the top of the circuit's control tower it was possible to spot Alonso sliding the car from corner to corner with the rear hanging sideways over the exit kerbs.
"I think I was very far away from a very good lap," he said. "Driving style, it was still not very clear to me what is the best way to perform a lap.
"I found a lot of problems on braking, because the car has very poor retardation because of the weight of the car and the steel brakes. I think they behave very differently compared to the ones I am used to, and traction, these tyres with the amount of power that those cars have, it is very difficult to manage, so in first gear, second gear, third gear you are still spinning the tyres.
"I didn't know if it was better to go full throttle and spin the tyres and really move forward or control with the throttle and maybe lose a little bit of performance on exit. So at the end, I think...it is not so clear for me even after one day what will be necessary on these cars."
Despite far from ideal conditions, by his final run of the day, Alonso had knocked four seconds off the installation lap performed by Johnson in the morning and set a best time of 2:10.830. It wasn't clear how much Johnson was pushing on his initial lap, but Alonso's pace in completely unfamiliar machinery impressed those watching on.
Johnson wants him to try on an oval:
"Yeah, he didn't get a fair shake of experiences today," Johnson said. "Our cars are heavy and have a high roll centre, so when you can put them on a banked track they have a chance to shine. Dover, Bristol, even some of the banked mile-and-a-halfs, it would really impress him."
http://www.espn.com/f1/story/_/id/25384978/when-f1-fernando-alonso-met-nascar-jimmie-johnson