a choice of the Sport Roadster, 2-passenger Coupe or 2-door 5-passenger Coach to US$975 ($ in dollars ) for the Deluxe Landau Sedan. Earlier in 1925, the GM Art and Color Section, headed up by Harley Earl standardized all GM products and continued the tradition of planned obsolescence which introduced yearly appearance, mechanical upgrades or new optional equipment that in later years became standard equipment, and the 1928 Pontiac 6 "New Series 6-28" was the new sales leader favorite of GM and saw various changes too. The front fenders now had a higher crown which meant that the edge of the fender came further down the sides of the tires and covered more of the front of the tire with a beaded edge. All previous "Deluxe" models were renamed "Sport", and the Indian head hood ornament no longer had a headdress, which now signified it was using the likeness of an Indian brave. Prices remained under US$1,000 for all coachwork choices. January of 1929, the updated Series 6-29 "New Big 6" was introduced, signifying that the engine displacement was now at 200 ci, and styling was now influenced by the Vauxhall 20-60 which GM had previously purchased in 1925. All vehicles built between August and October of 1929 were identified as Series 6-29A. Some of the improvements recorded were appearance, mechanical or feature enhancements to include a vertical center divider on the surface of the radiator, vertical louvers on the sides of the engine cover, oval opera windows on closed body sedans, and a combination transmission and ignition lock. When the Wall Street Crash of 1929 occurred in September, both Pontiac and Oakland sales dropped dramatically and because Oakland was the more expensive, GM leadership decided that Pontiac should remain. January of 1930 introduced the Big 6 Series 6-30B and some of the improvements recorded were a rearward sloping windshield, a beltline molding that extended around the exterior, and exterior sun visors above the windshield. Wheel dimensions were measured at 29" and model year production dropped to 62,888. For model year 1931 the "Fine 6 Series 401" was introduced in January, and the most notable changes were a 112" wheelbase, seven body style choices, while it shared appearance and technical advancements introduced by GM on all cars for this model year. This was the last year for Oakland, and prices remained close in comparison to Chevrolet at US$675 ($ in