A B7RLE Mk I has fuel tank below the rear portion of the
bus.
Regos: RU3718U to RU3722G, PA4136X, PA4139M, PA4144Y
A Mk II has fuel tank above the front wheel arch of the
bus
Regos: PA5278M, PA5279K, PA5286P, RU4127T (with new dash)
A Mk III has a similar configuration as the Mk II for fuel tank,
with some minor adjustments to the chassis, and comes with Euro 4
and 5 (with Adblue) engines, and a new dash (as with newer Mk
IIs).
Regos: RU4290D, SBS8030L.
A B7RLE indicates that it is a Bus with an
engine of approximately 7 liters which is placed
at the Rear/Back of the bus and is a
Low Entry bus.
And in any case, try and avoid the Mk Is (until someone does
something to them), they have the strongest vibrations of any bus
(don't think a Scania or DAF can rival it)
.
