Citroen XM Forum

Do we know anything much about this production item, for 1990 ?

Mi16x4 - Another version with the 1.9L 16-valve Mi16 engine, albeit with a slightly higher engine rpm limit than the 2wd model - although no extra power - but featuring permanent 4 wheel drive, and a self-levelling hydroelastic rear suspension system. (Wikipedia: Hydropneumatic Suspension)

I can understand lots of reasons why Peugeot wouldn't have done this, so interested in such a seemingly out-of-character decision.

Yea basically a BX 4x4 setup with the 16v engine where the BX had an 8v ..

same weak poor transfer box.. and its a simmilar format as the bx system but I recall it was not identical.

I believe the later 405 T200 or T-16 (or something along those lines) version also had hydropneumatics at the rear?

Just the Mi16x4 I thought, which used an electric pump. Testing the technology for later Citroens perhaps!

The hydraulic rear suspension would be to compete against the Mercedes 190E, Cosworth, which had either rear hydraulic suspension or 4 wheel hydraulic suspension.

Hydraulic suspension offers much better wheel control than springs and dampers.

Wow, here is the car, 2 days left:

http://www.ebay.co.uk/itm/261843486493? ... 355wt_1134

What a piece of technology. If I had space for another car, honestly I'd buy this one right now. Have always liked the 405, think it still looks great.