Question

Hero's Challenge: Cars At A StopLight

Answer 1

Summary of the problem: 
Diego=Red
 Ingrid=Sedan
 White then Green
 Rachel then 2 then Minivan 
 SUV then Anton
 Yuna = Green
 Yellow then Convertible
 Rachel then Blue
 Sedan=white 
 Now begin to combine in order:
 1. Rachel
 2 Blue 
 3 Minivan
 Since IngridSedanWhite is followed by YunaGreen, these do not fit as 1,2 or 3 so they must be 4 and 5
 4 IngridSedanWhite
 5 YunaGreen 
 The only place yellow then convertible will fit is in 1 and 2. So:
 1. RachelYellow
 2 ConvertibleBlue
 3 Minivan
 4 IngridSedanWhite
 5 YunaGreen 
 The SUV has to be 1 or 5, but Anton is behind it so the SUV must be #1. So: 
 1. RachelSUVYellow
 2 AntonConvertibleBlue
 3 Minivan
 4 IngridSedanWhite
 5 YunaGreen 
 The only color missing is Red so Diego must be driving the minivan:
 1. RachelSUVYellow
 2 AntonConvertibleBlue
 3 DiegoMinivanRed
 4 IngridSedanWhite
 5 YunaGreen 
 This leaves Yuna to be driving the green pickup truck.