by xrotaryguy » Wed 30 May 2007, 04:10:40
$this->bbcode_second_pass_quote('The_Toecutter', 'T')hat's precisely why aerodynamics should be significantly improved so we can shove a big fucking V8 into a midsize car and allow people to still get 35+ mpg while allowing 0-60 mph < 5 seconds.
Oh, but we already have them. Grass Roots Motor Sports measured over 30mpg in a late model Corvette. The Corvette has a very slippery shape, and an ultra tall 6th gear. 5th gear is also over driven. GM just can't get enough overdrives in this car. Of course those are highway miles, not combined miles.
Cadillac's North Star V8 powered cars will also get over 30 on the highway. Most Cadillacs will not go from 0-60 in under 5 seconds, but I'll bet the XLR will. Since the XLR is also basically a Corvette, it will probably get 30mpg too.
Back on topic, city buses have been using compressed air for years to recover some of the energy that would otherwise be lost during breaking. There is basically compressor / pneumatic motor that makes this happen along with one or more large air tanks.
Another innovative bus was used, and I think still is, in San Francisco in the mid '70's. This [web=article]http://www.time.com/time/magazine/article/0,9171,943707,00.html?iid=chix-sphere[/web] basically how it worked. The San Francisco buses didn't really use this technology to power the buses for significant distances. Rather, the flywheel allowed the buses to travel off of the electric line for short distances. This really helped mas transit planners modify bus routs with out rerouting power lines.
There is actually an air powered car going into production in India in August of 2008. Popular Mechanics did a short piece on it in their June 07 issue. It's called the Air Car. Wow, that's original huh? It has a claimed cruising range of 125 miles and a top speed of 68 mph. That's not notably fast, but the range is... well, almost acceptable. The car is of a super light composite construction. This construction is incapable of passing US safety standards. The carbon fiber tank holds 340 Liters at 4350psi. That probably won't pass US safety standards either. Yikes!
$this->bbcode_second_pass_quote('', 'd')eregulate the small auto makers. YES!!!
I'm sure my wife will never pay good money for or transport our 6yo son in a "deregulated" car. Ralph Nader probably wont either.