Brigiboo

Hello, We have just stumbled across the Alphards and think it's the vehicle for us. We would hope to use as everyday family car. I'm leaning towards the 2.4 because the mpg for the 3 or 3.5 is very low and would get costly. Could anyone advise? Is the 2.4 powerful enough for the size of vehicle? Is there much difference between the 2.4 and 3 / 3.5 in petrol costs and mpg? Are the second generation worth the extra money? Sorry fir all the queations and thank you so much for any advice. Brigid x