TFR you car's speed is unknown because you haven't run against other F103 but the handling looks ok and i think the speed should be ok too. Just drive a little better and you'll be find and maybe some better batteries too but time is not a factor.
Just learn to enter the tight hairpins like how i do it
I prefer the Tamiya GT1/Lemans type on my Cross..
They're more detailed and come with sponsor decals... Any Tamiya F1 or LeMans type bodies is a direct fit to the Cross F1 chassis. I have all three of the Tamiya Lemans bodies... I prefer the Toyata or Porsche body they provide more downforce. The Toyota body does handle great plus the rear wing is adjustable.
Try to get them as soon as you can before Tamiya stops making them like there F1's.
I have two Tamiya F103 RS formula 1 cars, whit a lot of HPI Parts on it. Next year i race whit my F103 in the Eurocup in the Netherlands. I only have this F1 now two weeks and i love it, its better than my toering cars.
On a Forum in Holland i read that Tamiya design a new F1 chassis totaly diffrent than the lates F103RS. Whit more setup options, has anybody got more information about this F1 chassis.
Maybe my English is not that good because i am from The Netherlands.
Tamiya brings a new F1 chassis on the market an it will be very special. I read this on a dutch Tamiya Forum and that guy who reply works at Tamiya NL. But hey say that the F103 is next year illegal in the Dutch Tamiya series when the new F1 is ready for sell and race. I think that this new car has 4 wheel suspension or pushrod's. When it is pushrod suspension (only in the front i hope) i think that tamiya is a real competitor in RC F1 racing. Here in holland avrey body race in the dutch F1 championship whit Corally.