Well,
Carsten, I see you got lots of good advice.
Please allow me to offer another alternative. If you and your SO are going to be "one" and you two make a total income of $120,000, you should be able to "save" $30,000 within a year .... then go pay cash for a new 2014 BRZ/FRS next fall.
Meanwhile, it would be a good idea to build/repair your credit ....
humfrz