1000watts is enough...
Most tracks are astro turf here en every body is racing with the tekin buggy motors, MMM combo's or the losi motors.
I have a 2200kv MMM combo in my buggy but I don't like it that much. It's too much power imo. I think I'll go with a Tekin 2050kv/1900kv combo next month. I doubt if 1900kv will be enough for the European tracks...