It’s been almost a year since Volkswagen first showed us its new Tiguan.

However, the vehicle still isn’t on sale in the United States as VW is waiting until development of this long-wheelbase model is complete.

Another reason for the delay is that U.S.-spec Tiguans are to be sourced from VW’s plant in Puebla, Mexico which needed to be upgraded to accommodate the new compact SUV.

So far we’ve only seen the second-generation Tiguan’s regular bodystyle. Today we have our first look at the stretched version thanks to these spy shots of an undisguised prototype.

New Volkswagen Tiguan (European-spec), 2015 Frankfurt Auto Show

New Volkswagen Tiguan (European-spec), 2015 Frankfurt Auto Show

The longer rear doors are immediately noticeable. The C-pillar treatment also appears to be different. The extra length will allow VW to squeeze in third-row seats.

Otherwise, the two Tiguan models should be much the same. Both ride on VW’s flexible MQB platform, the same platform that will underpin the automaker’s upcoming mid-size, three-row SUV.

Powertrain options will be market dependent, but we can expect a turbocharged 2.0-liter inline-4 to remain the volume option on these shores. A plug-in hybrid option, previewed by the recent Tiguan GTE Active concept, is also a possibility, especially now that VW is unlikely to offer a fuel-efficient diesel model.

Considering the prototypes are completely undisguised, the official reveal shouldn't be far.