Chrysler 2009

If people could invest in automotive powertrains, the handful of people out there with electric car stocks would be seeing those very-long-term investments finally begin to pay off. Back in the early years of the 20th century, electric motors were plenty popular among the nascent automobile industry; of course, so was steam power.

But while the days of water-vapor driven cars cruising down Main Street are as defunct as sock hops and Molly Ringwald�s career, the electric car is undergoing something of a renaissance. Between last year�s hair-tearing increase in gas prices and the sudden awareness of global warming as more than a conspiracy theory, people are starting to reconsider the benefits of electric cars.

Some of this interest, unsurprisingly, has come from the world�s big automotive manufacturers � for example, GM�s Volt and Chrysler�s ENVI family, such as the 200C sedan. However, other ventures have been put forward by companies you�ve never heard of � Fisker�s Karma sedan, for example.

Fisker Karma

But Tesla � the manufacturer of today�s Preview subject � sets itself apart by being the first to put boots on the ground � or rather, tires on the pavement. While Fisker, Chevrolet, Chrysler and a slew of other manufacturers large and small have been touting upcoming models, Tesla has been selling its loosely-Lotus Elise-based roadster since last year. Leonardo DiCaprio, George Clooney, and Cameron Diaz are among the greenies who�ve unloaded around 100 grand to say goodbye to gas forever!

Tesla Roadster

Well, only if they�re planning on driving less than 220 miles, because then the batteries run out of juice and you have to spend seven or eight hours recharging. (You can get a higher-ampere home charging station that�ll top off your battery with electrons in about three and a half hours, but plugging into a regular old outlet means a full night, more or less.) And only if you�re planning on carrying one other person, since it�s a two-seater. And only if you don�t need a whole lot of luggage � hey, it IS based on a Lotus Elise.

But the good folks at Tesla Motors (named after Serbian inventor and alternating current enthusiast Nikolai Tesla, whose last impact on the zeitgeist was when David Bowie portrayed him as a Hugh Jackman-duplicating scientist in The Prestige) are no fools; while a sexy convertible may draw in attention (and venture capital bucks), to take the company to the next level of profitability, they needed something more practical.

Hence, the Model S. A mid-sized luxury sedan designed and priced to take on the BMW 5-series, the Mercedes-Benz S-class, and the Jaguar XF, Tesla�s new model promises gasoline-car range and performance, greater seating capacity and superior versatility � all for less than the competition, once fuel costs are rolled into the equation.

As John Travolta noted in Pulp Fiction, �That�s a bold statement.�

Let�s take a quick look at those claims. Better yet, let�s see how it really stacks up against the competition. For argument�s sake, let�s weight it against the standard 2009 Jaguar XF sedan � among the newest of the mid-sized luxury sedan class, and already acclaimed as a class-leader by quite a few factions in the motoring press.

Jaguar XF

Range: Tesla claims the Model S achieves a 300-mile range with its optional high-capacity battery; regular models can roam a mere 160-miles before seeking sweet, sweet current. The naturally aspirated 4.2 liter V8 in the Jag has an 18.4 gallon fuel tank, and is rated at 16 mpg city/24 mpg highway. So one tank of gas in the XF will get you somewhere between 294 and 460 miles; figure an average range of about 375 miles. Plus, fueling up the Jaguar only take about five minutes. Advantage: Jaguar

Performance: Tesla isn�t mentioning horsepower figures yet, but claims the Model S will do the 0-60 sprint in 5.6 seconds, the quarter-mile in 14 flat, and tops out at 120 mph. The XF, by Jaguar�s numbers, does 0-60 in 6.2 seconds, with the party ending at 121 mph. Advantage: Tesla

Practicality: The Jaguar, while inordinately pretty, is a fairly normal mid-sized sedan in terms of packaging. Four adults will fit in comfort, five if the three people in the back seats would help the others move out of their apartments. 17.7 cubic feet of packing peanuts will fit in the trunk. The Tesla, on the other hand, claims 7-passenger capability - or rather, 5+2 capability, since the two seats in the way back are about as suitable for adults as those in the back of a Porsche 911. Still, it�s a handy feature to have, especially given the tendency of most people to buy heavy, gas-slurping SUVs when they have to transport more than three kids. Due to the low-lying nature of the powertrain, there�s a second trunk up front as well, a la Porsche Boxster. Advantage: Tesla

Price: The XF starts at $49,975. The Tesla starts out a bit higher � $57,400 � but should be eligible for a $7500 federal tax credit, lining it up nicely with the Jaguar. Of course, that�s without the extended-range battery, so expect any saving from that tax credit to vaporize pretty quickly if you foresee your life taking you more than 80 miles from your house. (The company claims you can also swap the battery in 5 minutes for a fresh one, but doesn�t say how easy this might be or how much a spare battery costs.)

But the Model S does have a couple neat features the Jaguar lacks � a 17? touch screen on the console (yikes!), along with claimed 3G wireless capability, which I simply don�t understand. Is there a cell phone tower built into the car? A panoramic sunroof, xenon headlights, smart-key technology, and a few other goodies will either be standard or optional � the press release isn�t clear. You should probably expect to pay a few grand more than a comparably-equipped XF if you want that extra range.

The Tesla�s big cost advantage, however, should come not at the initial check-writing phase, but as the years trickle by. Depending on how much you�re paying your electric company, filling the extended range 70-kilowatt battery might cost less than $10, which certainly beats the hell out of the $36.80 it�ll take to fill up the XF at $2 a gallon. Even if your electric company decides to be a pain and it costs you $20 per full charge, you�ll still save $315 or so for every 10,000 miles you drive. Tesla predicts the Roadster�s battery should last about 7 years or 100,000 miles; if the Model S follows a similar price structure, so long as the battery costs less than $3150, you�ll save money by going green. (Tesla currently quotes a jaw-dropping $36,000 fee for battery replacement on the Roadster; hopefully they can knock that down a few dozen percent for the sedan.)

(However, in the ethical spirit of journalism, I have to remind you that the Tesla�s numbers will vary greatly depending on how much your electric company charges. If you�re only paying $7 per 300 miles, you�ll save $748 per 10K over the Jag, and Tesla can charge $7479 for your new battery while still claiming you save money.)

So value-wise, I�m gonna have to go Advantage: Jaguar. While going electric saves money from day-to-day, the battery replacement fee probably negates it. And (hopefully) the engine on the Jag will last more than 100,000 miles.

Of course, all of this is still rather academic, as the Model S won�t be plugging into consumers� garages until the summer of 2011 or so. Given the billions of dollars being sunk into lithium-ion batteries for cars, the price should come down quite a bit over the next few years � and by 2016, when the first wave of Model S�s starts rolling over that 100K mile mark, the batteries might well cost a tenth what they do today.

So in the end, is the Model S a real car, or simply a curiosity? Well, it certainly plays the part of real car well enough. Until people from outside the company can test it out, we won�t know for sure, but if they can live up to their claims, it will probably hold its own well with its gasoline-powered competitors.

But its major flaw lies in the time it takes to power up. One of the things that makes internal combustion engines so wonderful is the miniscule amount of time it takes to refuel � a car or truck can drive for hundreds of hours straight, so long as fuel is put into the tank very now and again (although you really should turn it off while filling up, folks). As long as you have to stop for three to eight hours every 300 miles or so, pure electric vehicles will have difficulty catching on as a family�s �first� car.

Chrysler 200C concept

So what�s the solution? Well, it�s the one seen under the hoods of the Fisker Karma, the Chevy Volt, and Chrysler�s ENVI vehicles � hook up a small gasoline engine as a range-extending generator for the batteries. The �plug-in series hybrids� being touted by these companies will run about 40 miles on plug-in electric power, then several hundred more as the engine recharges the battery � just like plugging your laptop into a gasoline generator. Using the gas engine as a generator means greater fuel efficiency � somewhere between 50 and 150 mpg for a car like the Volt � and for shorter trips, no gasoline will be used at all.

Chevrolet Volt

That�s not to say pure electric cars don�t have a place or a future. If we can figure out how to charge the batteries in five minutes instead of three hours � maybe a nationwide network of high-amp stations to replace today�s gas stations � electric cars might be all we drive, fifty years from now. And they make sense today for most day-to-day travel people take. But as long as Americans have a love for the open road and a desire to follow it day and night, pure electric cars like the Tesla will simply have to find a place as very capable bedfellows in a two-car garage.