Arriva North West - St Helens Depot

[turbo777]

RE: Arriva North West - St Helens Depot
If I may ask a question of those who may know.
On the Wrightbus website it states the the Pulsar/Pulsar2 are "lightweight single deckers" however the Solar and Eclipse products are classed as "heavy duty single deckers."
Now to my untrained eye the Pulsar, Solar & Eclipse products look the same, so what are the differences other than perhaps differences in weight??
What class is the Renown in?? As I personally from a passenger point of view would prefer a Renown to a Pulsar any day of the week, unfortunately we don't often get them on the 352 much. :-(