I had done some research on this, and the makers of the pavers do NOT recommend anything less then around 3 inches for driveways. As pointed out above I think you are going to have a real headache with the thin pavers. My neighbor wishes he have NEVER had these installed. After this research, we had our driveway painted in a design that looks like cobble stone. No maintenance for 5 to 6 years, then a clear coating. The painting is about $2 per square foot and was much less then pavers, and avoids the maintenance required for the pavers over the same period of time.
Please search this site for additional info.
Just MHO, hope this helps.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
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