When McLaren inaugurated its present range of roadgoing supercars with the MP4-12C in 2010, it presented that car as the ultimate expression of form following function. Designed entirely for performance, the 12C was shaped by the wind tunnel and McLaren was proud of that fact. I’m here to state the obvious by denouncing that extremist approach to design as wrongheaded, and the car reminding me of that fact is the 1939 BMW 328 Mille Miglia Touring Coupé that I saw at Goodwood last week.