New title and "opening", as follows:

What's OnTheDash of the World's Fastest Supercar (1975)?

Folklore has it that during a pre-delivery test run on the autostrada in January 1975, this 1974 Lamborghini Countach LP400 ‘Periscopa Speciale’ (chassis number 1120056) achieved a speed of 202 miles per hour (326 kph), making it the first production road car to hit the 200 MPH mark. Even while today’s consensus dismisses the 200 MPH claim, few can dispute the fact that in January 1975, this was the fastest car in the world.

Are we OK with that?

Jeff

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: They weren't the only ones at it, but Lamborghini were well known
: for vastly exaggerating performance figures and for the Countach
: in particular. Independent tests had the LP400 topping out
: somewhere around 160 mph, and the power increase wouldn't
: account for another 40. Not that the tyres were rated anywhere
: near that anyway. But as the info came from Lamborghini, it's
: tempting to dismiss it as more flim-flam.

: http://www.autozine.org/countach/countach_7.htm