OBD-II Adapter / Arduino Due kit availability

Hi,

I am interested by the kit #2 but I don't know if the MEGA will be fast enough to perform the tasks below.

- datalog on SDCard approximatively every 150~200ms 200 bytes coming from a request to my ECU (ISO9141/KWP2000, Read Data By Local Id)
- Show some datas on the touchscreen
- record all the GPS returned by the GPS, ie at 5Hz
- maybe some other algo to detect a new track when racing for example.

Does anyone tried to do such project with the MEGA or the Due ?
Is the Due be compatible with the examples sketch ?

I have a working project turning on my PC using an ELM327 dongle and now would like to port it to an Arduino platform.

Thanks in advance for the answers.
Regards.