Cadillac updated its V16 in 1938 for the Series 90, moving the valves from the heads to the cylinders and mounting the engine's halves at a 135-degree angle. The Series 90 V16 cost over $5,000 ...
President Biden rides in a highly modified Cadillac, known as the Beast ... the 1930 Series 45 featured the new V16 engine that was as luxurious and elegant as it came at the time.