Buick Six

The gearshift and emergency brake were relocated to a central position inside the vehicle, an approach used on all GM products for 1914.

[2][1] It continued to use the patented overhead valve engine implemented by Walter Lorenzo Marr[3] while the cylinder head was not removable until later developments.

During this time period, Oldsmobile introduced the Light Eight, sourced and shared from the Cadillac Type 51 while Buick chose to stay with the smooth running six-cylinder engine, while Cadillac didn't offer a six-cylinder engine till several decades later.

Buick was the only GM product to use the exclusive overhead valve engine however.

The top level choice for 1925 was the 7 passenger Town Car for US$2,925[1] ($50,818 in 2023 dollars [5]).