Fastest speed top down?

Over 160mph in a California on a German Autobahn.

The only issue was that loose items were being sucked out of the car.

 

290'ish kph in a Cali T. Pretty windy. I wish Ferrari did in cabin wind deflection as well as Porsche does.

 

I will pick up my Cali T in Cologne in the beginning of September!

Then I will let you know. ;-)

 

So far, 161 in the Cali T and 172 in the 458. a little wind turbulence, but my cabins tend to be free of anything not bolted down or seatbelted in.

 

Wind deflector was used. Paperwork and items of clothing were being sucked out. Luckily the items of clothing did not escape and nothing important was lost whilst I slowed to a more reasonable speed.

 

Was used. There's still a lot of turbulence inside and as was said, everything gets sucked out.

 

183 roof up, 160ish roof down. Some loose receipts were lost lol.