The last version had a 410 kW ( 550 hp ) engine instead of 321 kW ( 430 hp ) .
The last version produced until 1934 , a total of 456 , but it was outdated and too slow for the standards of the mid-1930s .
The last version had a 410 kW ( 550 hp ) engine instead of 321 kW ( 430 hp ) and produced until 1934 , a total of 456 , but it was outdated and too slow for the standards of the mid-1930s .