Well maybe I didn't need 4-wheel, but it was dark and all I could tell was that the median was higher than your run of the mill sidewalk curb. I thought 4-wheel would be better to crawl up and over the curb, rather than 2-wheel which would be pushing the front tires over it. It just seemed better for the front tires. From the posts in this thread I gather I could have gotten over the median in 2-wheel too.

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Al