Here are some measurements 0-100km/h – 6.8 sec, a customer did with his modified CL9 (ECU reflash, custom headers, custom intake, bigger TB) .
The Euro CL9 has some weird gear ratios (1st gear is very short , second gear is longer, and final drive is just 4.3 – for instant the US CL9 had 4.7) and when shifting from first to second gear a big drop in rpm is noticed , which reduces the accelerations. Tough the customer managed a 6.8 sec time. The k24 engine potential is fantastic.
Click on bellow picture, it will take you to the customer personal blog – it has a lot of usefull information about CL9 (use Google Translate)