Here is our Jetta with 30% front, 10% rear.
It's not that dark, but it does still help a little with comfort. I normally do 15% on the front of trucks, but wanted the car a little lighter (draws more attention) and my wife doesn't see as well at night. The 30% is really easy to see out of at night too.
The last picture of the windows look a little distorted, but it's just from the camera lens.
2006 F150 FX4 Super Crew - Bilstien 5100s leveled 2", 35" KM2s, 4.56 gears, Detroit locker, Eaton E-Locker, Traction Bars, AEM intake, Xcal 2
2010 VW Golf TDI 6MT