When it comes to an ideal family car, you have to just pick and choose between a car and an MPV. While the MPV wins in terms of overall packaging and apparent size, many people still prefers a car.
This is because a car is more natural to drive, unlike the disconnected and tall feeling sitting in an MPV. You may see far out in an MPV but many would still trade the confidence for the slick dynamics of a car, which feels more stable because it has a better center of gravity.
And an MPV is really unnecessary when you have a small family, because all that space and fuel consumption costs will go wasted.