Hello 997 S driver, you already know my performance problem…the performance test will only be carried out next week because the one scheduled for this week went in the pants (he was only allowed up to 320 hp !!!). Yesterday again with open car full throttle tested. The read value was 269 km/h as stated with open roof…I would intress which max. values you have at your 997 S convertibles ??? thank you for your help Kalli