I have a house in BC and another in Alberta, so I go back and forth a fair bit. For anyone who hasn't made the drive, I highly recommend it; those mountain roads in the summer are pure bliss.
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Here's the route)
I was a little apprehensive to take my new Z on such a drive. 2 seater, rough, heavy steering, etc. etc. not exactly a GT ... but I did it.
Colour me surprised; I had a hoot on those twisty roads! The smiles:miles ratio was off the charts.
To begin with, the seats are surprisingly comfortable for long drives. The suspension is much more civilized over road imperfections than I imagined, while still helping the car to remain composed at - dare I admit - law-breaking speeds.
Also surprising, the Z has remarkable grip on wet highway at high speeds - I wasn't able to test it limits while driving (slightly) north of the speed limit.
Bottom line, I find the little Z is an extremely entertaining car to drive on the highway, yet still comfortable enough to make longer trips a joy.
The only thing I'd recommend first is to line the hatch some sound-deadener. That little thing does wonders to cut down tire-roar on more pebbly highway surfaces.
Cheers!