Hi @dahpilot, it's been more than 3 decades since I got my driving license. If things have not changed you have to pay for theory and practical classes in a private academy. From what I have seen each practical class costs an average of 30 euros. In Madrid it is likely that each class costs about 40.
You have to pass two exams, one theoretical and one practical. The practical one is done after passing the theoretical one. Passing the two exams, taking into account the practical can cost about 1000 euros, from what I have consulted on the internet.
The motorcycle license should be similar, and there are two types, a simple one and one for large displacement motorcycles. If you want the large cylinder you can get to pay about 800 euros (according to) internet.
Good luck with the pending exams.
Little more I can tell you. A big hello.