Bike Friday, Bridgestone MB-6 700c, Ti-frame Xtracycle, RANS, Brompton, Dahon, Downtube IXFS, ex-Birdy & a recumbent pedicab.
Bromptonauts: lower M-type handlebars
Other than making a pricey change to an S-type, one way to effectively lower the handlebar height 1.5" on an M-model (from ~ 5.5" to 4") is to order these bars. A bit heavy, but the lowered position is MUCH more comfortable (to me), and there is no interference with the folding basket even while loaded. Each end of the bar can be cut off 1" to mimic the M-bar length, but I haven't found it to affect the fold, so I'm keeping it stock length for now. Still want to try a P-type bar though.