Everyone here has a valid point, but I'd like to point out that each car (S2000, RX-8, 350Z, LanEvo8) is definately different.
S2000 - I've driven an S2000 plenty of times, and it's not a daily driver kind of car. The S2000 was inspired/designed from racetrack cars, and it makes no pretense of hiding that. People that really would benefit from getting the car would be people with enough money to spare for another car and lots of free weekends. The trunk is only good for a weekend's worth of luggage, you can only put in some low sprint times if you do a tire-frying launch, or you can wait for VTEC to kick in at 3000 rpms, and in order to get full power the engine is screaming at 8000 rpms (not to mention the 9000 rpm rev limit). If you want sporty and real life practicality, search elsewhere, this car is best home on a racetrack or a twisty road, not for daily driving.
RX-8 - Sure, it's ugly, it's got a tad bit more torque than the S2000, and it's rotary. The RX-8 was designed as a family/sport car. The car is not the next generation RX-7. As we all know, the RX-7 is a superb machine for the track, but it failed in practicality (it was 40k when it left the US in 95). The rear seats were toilet seat covers, the american spec seats felt uncomfortable after 2 hours of driving, and the car itself was shrink wrapped around you and the engine. The RX-8 is designed to be a sporty car that can double as a daily driven family car because it can hold 4 adults in a decent amount of space. It's not a loud as a S2000 (which screams rice rocket past 3000 rpms) and it won't attract cops every single block. (well, it might gets some funny looks, giving its styling). To look at the numbers on paper is only one side of the story. Can you stuff people into the trunk in a Z/S2K? I'd like to see you try.
350Z - Sure, some think it's pretty, but after seeing it so many times, it's starting to rub off. The car is desgined for 0-60 sprints. That's it. Even if you get a track edition, you'll still get passed because it's all show (Hello big space taking roll bar in trunk). The Z can hold itself well in the twisty roads, but it just doesn't cut it for any long haul, it's best as a secondary car. Are you constantly running 0-60 sprints down the street? The G35 (aka JDM Skyline) is not a GT-R. It is going back to the days of when Skylines were sporty and practical. GT-R's are street monsters stock and when tuned. The G35 is lux-crusier/GT. It's faster than the Z in the 0-100, and it's much more comfortable in the long run. Not to mention just as stiff as the Z without some body brace running through the trunk. If you want to turn heads, both cars do it, but in the end, the G is more practical than a Z.
LanEvo8 - This is really just a car for boy-racers with enough green to toss about. If they had enough, they'd buy the E46 M3 (heck, I would), but this is, hands down, a car that screams, howls, and smacks you over the head that it's a racecar from a mile away. The car is 4WD, it's got carbon fiber everwhere, Recaro seats, 18-inch Enkei rims with wide fenders, outruns other cars (due to high torque) and a maintenace bill that's at least double vs. Prelude SH(my daily driven car). If you have enough money to do regular tire rotations every 8000 miles, going to the dealer for oil changes (the LanEvo uses a synthetic brand only Mitsubishi produces - similar to the M3), and dealing with the premium, it's not a bad car, but are you really going to be going at Autobahn speeds to need that spoiler? 4WD is handy, IF you live in a region that has seasons. And the fact that it has seating for 5 and a decent trunk place it higher in rank than the others.
I'm all for sporty driving, but my Prelude can double as a daily transportation car and a weekend sport car. If you're defining these on a real-world day-to-day base cars: An S2000 is a sport car solely for the weeked, the Z is a "look, I'm driving a Z" for single guys and sprinting, the RX-8 is a family/sport car that's fine for driving with adults without negating the sporty feel, and the LanEvo can be both sporty and practical for daily driving for men and teens with money. ALL of these cars have their ups/downs, but I'm sure you'd want your first car to be useful on a daily basis. OR you go and label them under the exotic category: "does it guzzle gas, sprint like mad, looks like it's built to race, and turn heads?" All of them would, except for the RX-8 (the family car).