The Swedish Speedway always takes place in southern Sweden, though. You can check for the upcoming location on the official website.
Tickets for the Swedish Speedway Grand Prix are available on the Ticnet.se and start around SEK 250 (£24 / US$ 39) for adults, depending on the seating area. Kids get half-price admission, and family tickets for two adults and two children are also available. I'd say the event is suitable for ages 8 and up - the race won't fascinate smaller children.
The Swedish Speedway Grand Prix is an large, exciting, and action-packed event for visitors in Sweden, and is part of the FIM Speedway Grand Prix competitions around the world. Sweden's national speedway team is one of the major teams in international speedway.