economics of street car to race car.
To share a few thoughts about the Atom, exige/elise, and Noble.
I have really looked these cars over very, very hard. I own an elise, have driven the noble on the track and am familiar with the Atom. With that said, the lotus suffers from weak toe links and lack of power (forced induction is an option but then there is ECU problems (it relearns the configuration and resets to factory specs), The noble is weak in the sides (impact) and has some parasitic heat issue. The atom lacks an overhead coverage and will do a wicked flip if it trips (lack of weight and body aerodynamics).
Looking at it from an economics stand point. to get a lotus right for tracking your looking at a total of about 100k invested (forced induction) in a car that depreciates like a rock. (hey I own one I can say this but there has never been a lotus that holds value ... sorry just speaking the truth.. awesome to drive though). The Noble will total out at about 105,000 and will always be regarded as a "kit-car". The Atom looks like it would be about 78,000 set right with drivers Hans device and tethers to keep your arms in ... for if or when you roll it.
Now that would make the performance numbers something like this:
Car 0-60 top speed lat G's
Lotus 4.3 155 1.03
Noble 4.1 175 1.09
Atom 2.9 145 1.20
those figures are on dot comps not Hoosiers. the G numbers would be slightly more.
So it comes down to how much you want to spend, where you want to drive, and if you track a short tight track or long one.
On a short track it would probably be atom, noble, lotus
On a long track Noble, Lotus, atom
But that is considering a world class driver .... which most of us are not. Let's face it .... once you get to a certain point in skills level with enough experience you could take a van and beat the crap out of joe shmoe in a carrera gt. The car is only part of the equation.... experience, skills, and preparation often matter more than what everyone fixates on.... the car. If you can drive it at 90+ % and its reliable, your smart, no one plows into you .... you MIGHT win.
two cents .... and I have on asbestos underwear.... oh FYI I am about to buy either the Noble or the Atom to add as a track car. So I really have no loyalty ... I'm a car whore.:biggrin
Steve