Yes, there are always loads of official practice sessions for all official series, you can also run time trials the same way if you just enjoy hot lapping.
There are also loads of hosted sessions which cost about $1 per hour from memory if you wanted to make something custom for friends/friendly competition etc. Feel free to join us tomorrow evening, although chances are that you'd have to purchase some content to do so as I think we're planning on running running the Porsche as one of the vehicles, I don't mind adding the mx5 thought, you'll have that already.