1934 Mercedes-Benz W25 Record

n 1934, Caracciola succeeds in establishing several class records on the Gyon speed track in Hungary and on the Avus in a modified W 25. On 30October he establishes a world record, covering a measured mile in 30.71 seconds with a standing start. The performance of the record car wasincreased to 430 hp, its transmission ratios were changed, and its cockpit was equipped with a lining which made Caracciola dub the car racinglimousine, but apart from that, it had the same design features as a standard W 25 racing car. It achieved a speed of 317.5 km/h. — DaimlerChrysler

In Detail

tags	silver arrow, golden era
submitted by	Richard Owen
type	Record Car
built at	Stuttgart, Germany
engine	M 25 B Inline-8
position	Front Longitudinal
aspiration	Supercharged
valvetrain	DOHC 4 Valves per Cyl
displacement	3360 cc / 205.0 in³
bore	82 mm / 3.23 in
stroke	94.5 mm / 3.72 in
compression	7.5:1
power	320.7 kw / 430 bhp @ 5800 rpm
specific output	127.98 bhp per litre
bhp/weight	507.67 bhp per tonne
redline	5800
body / frame	Aluminum over U-Section Steel Frame
driven wheels	RWD
front tires	5.25×17
rear tires	5.25×19
front brakes	Light -Alloy Drums w/Hydrualic Assist
rear brakes	Light -Alloy Drums w/Hydrualic Assist
steering	Worm & Nut
f suspension	Double Wishbones w/Coil Springs, Friction Dampers
r suspension	Swing Axle w/Transverse Leaf Springs, Friction Dampers
curb weight	847 kg / 1867 lbs
wheelbase	2725 mm / 107.3 in
front track	1473 mm / 58.0 in
rear track	1412 mm / 55.6 in
length	4040 mm / 159.1 in
width	1770 mm / 69.7 in
height	1160 mm / 45.7 in
transmission	4-Speed Manual
top speed	~318 kph / 197.6 mph