2010 Sierra Scotty HiLander

I am looking for some advice on towing a 2010 Sierra Scotty Hilander.  I am looking at several lightweight vehicles that can easily tow the weight (~4K), but some of them have front area ratings that seem to be smaller (40 sqr ft) than the simple front area calc of the HiLander.

The Specs for the trailer are given as the following.  The simple math puts the front area at ~54.5ft (OH x OW), however, the trailer has a curved section, where the highest part of the roof is set back from the front (as pictured below).  I am curious if this reduces the total front area, or if i should just stick to the simple math for this one.

Any help form you wonderful fellow travelers would be much appreciated

• Make - Serro Scotty
• Model - HiLander
• Year - 2010
• Total Length ................15’9”
• Outside Width ..............85”
• Outside Height .............92”