the all-new 2017 land rover discovery replaces the lr4, the british automaker's 3-row, 7-p enger suv. the discovery has softer looks but retains serious off-road capability and now offers a stout diesel engine. road manners, technology and overall refinement are all vastly improved. it's costlier than rivals like an acura mdx, but few blend on- and off-road manners like a discovery.