I've had nothing but full size Range Rovers the last 15 years and I have never experienced problems like you discussed. So fingers crossed I will not. All of my Range Rovers have been v8's and this engine is no different so I trust it will be more of the same in terms of reliability. It does sound that it was a major fail on your dealership though. I know if it was my dealership they would have been very apologetic and responsive to the repairs.