The Tesla car has higher instantaneous torque and a flat torque curve. The cost for me to drive 300 miles on gasoline is around $25 now; on biofuel, it's around $35; on diesel, it's around $12; on electricity, it's $3. Battery storage loses less energy in conversion than biofuel chemical storage. Electric cars are less complex and require less maintenance than reciprocating piston engines. Superior power, performance, durability, longevity, and cost doesn't seem inferior.
While I'm a huge fan of Tesla, I also greatly enjoy my dinosaur-burning sports cars. So I'm going to argue a few points here. For comparison's sake, consider a Chevy SS, powered by a LS3 6.2L OHV aluminum V8. IMO one of the greatest engines ever invented. Let's also consider a hypothetical engine swap with the torque-monster direct-injected LT1 from the Camaro and Corvette (the LS3's direct successor engine).
1. Performance. While the Tesla has instantaneous torque, the LT1 still delivers 300 lb-ft at ~1000RPM. That's barely above idle. Also, the SS is about 10% lighter than the lightest ~315hp Model S (4,000 vs 4400lbs), so the power to weight ratio is vastly superior. While the P85D probably skews outright power back in favor of Tesla, the damn thing weights nearly 5,000lbs. And the P85D is a 6-figure car. For the extra cost of that package, forced induction can be easily added to the V8 and return the balance of power to the Chevy.
2. Durability/longevity. Jury is still out on this one as I'm waiting to see how barely-maintained 10-year-old Model S's hold up. But pretty much all the kinks have been worked out of the LS engine platform and T56 6-speed manual transmissions. The only engines in the family that aren't utterly bulletproof are the 7.0L LS7 (high-G oil starvation during track use) and the supercharged LT4 (quality control during fabrication).
3. Fuel cost. Starting price on a Model S is ~$30,000 more than a Chevy SS. You would have to drive 400,000 miles to break even via fuel savings.
I'm really curious how you conclude that "power, performance...and cost" don't seem inferior on the electric cars.