If the Touran feels too expensive, then go for Zafira or Focus C-Max. Especially Zafira's seem to be very affordable here. If you plan to keep the car long term, I would recommend getting a diesel with particle filter. You won't be hit that hard when the CO2 taxes start to kick in. The petrol/diesel prices will also propably look quite different next year since the demand is becoming bigger than the production capacity for good. Anyway, a car is always a bad investment.