In message , The Natural Philosopher
writes
Tim Streater wrote:
In article ,
"Doctor Drivel" wrote:

"Tim Streater" wrote in message
...

The Prius is better all around in mpg.

But as two of my nephews who own them say, you won't get your
money
back on one of these.

They are cost effective in London as they pay no Congestion Charge.
Their emissions are far less than the poisoning crap we now have. The
low noise levels alone are worth.
Most car noise is from tires, not the engine.

depends on the frequency..and speed, and the car! actually AIR noise is
higher at high speeds.

Go to an F1 race and tell me most noise is from the tyres :-)
F1 cars don't have silencers.
--
hugh