If you ever have the chance to get to Hohenstein-Ernstthal - do it during the summer!
Most likely in July - because that's when racing fans from all over Germany (and some from other countries) come together to celebrate their hobby: racing!
You get the good tickets for about 90 Euro (for three days) and if you want you can stay at that camping side during the time - but watch:
1. if you want a good spot do not come later than Thursday,
2. if you think you will get enough sleep - forget it - everyone's partying!