Where got 2 radiators lah??
For Batch 2 & Batch 3 Volvos, it should be easy to
differentiate since they have rectangular headlights. For Batch 1
VO3x & LO3x is a bit harder from far.
EXTERNAL Differences
For the first 100 of batch 1, they have emergency exits on the
upper deck side windows whereas LO3x do not.
VO3x has only 1 long A/C grille with horizontal louvers at the back
of the bus, above the engine cover, whereas LO3x has 2 square
grilles instead.
VO3x Batch 1 only has 1 A/C grille on each side, behind the last
rear window (or behind emergency exit). LO3x has 3 grilles (1 of
them small) on the nearside and 2 grilles on the offside.
INTERNAL differences
VO3x has standing areas but not for LO3x.
VO3x has the TVmobile placed on the nearside for lower deck but
LO3x is on the offside.
VO3x A/C filter is at the back of the bus, above the last row of
seats so there's a big grille above the seats. LO3x has the grille
facing downwards right after the exit door.
VO3x has only 4 A/C vents for passengers on the last row compared
to 6 for LO3x.