I recall my now FIL had two Volvos 240s at that time. Drove one from Miami to New Orleans.
Thing was so slow I was grateful for the lack of hills in Florida. Don't think it would have made it up any hill.
A friend of mine runs a land rover / range rover specialty repair shop. Based on his experience, they are capable of stopping anywhere, anytime, at any cost.
I don't know about the brakes, only their unreliability.