Bit of a thread ressurection, but I've been wondering about this again recently.
Wild guess at 200 - 250kg on top of the 1400-ish of a standard car
subframe, diff, driveshafts, hubs, brakes, suspension, propshaft
BTW - just noticed your signature - welcome to the 400+ club
I'm really struggling to see how a 4WD conversion would add this much weight. The standard car already has a rear subframe, hubs, brakes, suspension etc.
How much can an additional set of driveshafts (presumably similar weight to original), a rear diff and a prop shaft really weigh? Clearly there will be a few more bits to make it work does this really weigh somewhere between 150-250kgs as per Nigel and other's responses to this post?