SBS8148G on 27
Utter piece of trash! Wanted to ride the N113, couldn't find it,
and then this bus had a engine that cloest to it. Rattles on the
highway, as if it were going to fall apart, and you can even hear
handphone signals amplified.
SBS666E on 506 
Very smooth engine with powerful acceleration. It did crawl
along one stretch along the PIE, but that's because of heavy
traffic on PIE.
