Streetlite is a Wright chassis.If it was a VDL it would be badged as such .The only big group that tends to buy large VDL orders is Arriva.Most of the the Streetlites are Cummins or Mercedes powered.
Arriva is VDL’s UK Dealer, hence why Arriva most likely have them in service, but VDL at the moment only sell Futura Coaches in the UK.
Similar to the way EvoBus is the dealer for the Mercedes Citaro.
The Wright Streetlite WF(Wheel-Forward) and VDL Citea MLE are the same bus with slightly different exterior designs.
The Streetlite DF(Door-Forward 10.2/10.8m) can also be rebadged as a VDL product but have yet to be built.
The StreetLite Max(Long Wheelbase Door-Forward-11.5m) isn’t offered by VDL though, likely because they already offer a medium weight bus, the Citea LLE, which would cover what the Streetlite Max could do, perhaps its even to do with GVW regulations abroad that maybe why the Max isnt offer in a VDL form.
These weight restriction apply to UK 2-Axle deckers for example but do not apply in many places abroad, thats why Full Aircon can be had on a 2-Axle Streetdeck in Japan for Kowloon Motor Buses(Pictured with no Hopper Windows), not to mention the fitment of Daimlers larger/heavier 300hp OM936 6-Cylinder, of course the larger engine has been fitted because of the hills in Japan, anyways...
Think of the MLE as VDL’s foreign market Streetlite, the MLE is built exclusively with the Cummins 4-Cylinder ISBe to coincide with many of VDL’s offerings with Cummins engines(VDL also use Fiat-built Cursor Engines), by extension, considering the MLE is built at Wright Bellamena plant and exported, the streetlite range could potentially still be purchased with a cummins option in the UK even if it isnt advertised as such.
VDL do offer the Citea LLE abroad which can be thought of as a fullsize Medium Weight Single like the Enviro 300 with smaller wheels etc, it even uses the Cummins ISBe engines as well.
The Citea SLE is the equivelant of a B8RLE heavy GVW single, Note the larger wheels.
Wrights Streetdeck “intergal” chassis is built by Wrights with the Daimler OM934 engine in the same way ADL build the chassis for there Enviro 400 MMC with the Cummins ISBe6 engine, at this moment VDL don’t have a Double-Decker product as many foreign markets favour Artics for capacity, abroad, bridge height restrictions largely play a part to this when high capacity is needed.
Hence this is the point the VDL Citea SLFA Artic is introduced...