Hi!
If you have business in the Helsinki area, you may want to check out the following place (open during the winter months)
http://www.fullspeedrc.fi/bunkkerin-rc-keskus "The Bunker" (Bunkkeri) - ugly grey building close to Verkkokauppa.com
Acess through a door that is located on something that looks like a loading platform for trucks, the area below the loading platform is now now used as a small parking area for cars.
Fifth floor, shares the space with Roller Derby Girls. The RC tracks are behind the derby track.
There are three tracks: buggy, drifting and touring track.
Tuesdays are beginner nights (free of charge).
Other regular opening times are mentioned on the webpage. But to be sure that the door to the tracks is actually open, I would recommend following the discussion chain
http://rc10.fi/index.php?topic=91626.0 and
http://pksrca.nimenhuuto.com/eventsThe tracks are managed by Fullspeed RC Club (former PKSRCA).