Nissan Silvia S13 4-door concept
Apart from wheels and wheel arches everything seems to be quite nice. Door outlines are based on Skyline R32 4-door sedan. The rear door is slightly adjusted to look a bit more like the one on Nissan Laurel C33. The wheel base is a bit longer, maybe something around 25 cm, I did calculations on that one, but it was 1 year ago, so I can’t remember the exact length. For me looks like pretty doable concept if the body of a car can be welded and stiffened properly.