Which customer ordered 1939 'Chevrolet Deluxe Coupe' at the highest price?
1939 'Chevrolet Deluxe Coupe' refers to productName; the highest price refers to MAX(priceEach)
SELECT t4.customerName FROM products AS t1 INNER JOIN orderdetails AS t2 ON t1.productCode = t2.productCode INNER JOIN orders AS t3 ON t2.orderNumber = t3.orderNumber INNER JOIN customers AS t4 ON t3.customerNumber = t4.customerNumber WHERE t1.productName = '1939 Chevrolet Deluxe Coupe' ORDER BY t2.priceEach DESC LIMIT 1