For comparison the $136,000 Tesla Model S plaid has been clocked at a 8.83 second 1/4th mile. But that took some time for a customer to eventually set. Initiall

For comparison the $136,000 Tesla Model S plaid has been clocked at a 8.83 second 1/4th mile. But that took some time for a customer to eventually set. Initially it was reported to be 9.2 seconds with Car and Driver seeing 9.4 seconds. So the $2.1 million Nevera may see another few tenths shaved off over the next 6-24 months. The model S plaid was initially governor-locked to 162 mph / 260 mph but has since been recorded reaching up to 216 mph / 348 km/h. The Nevera’s 412 kph is 256 mph. Reaching 256 mph requires 40% more power to overcome just wind resistance than to reach 216 mph. If you doubled the power of the Tesla Model S Plaid you'd potentially reach somewhat shy of 305 mph (ignoring all drag other than wind). If you doubled the power of the Never you'd potentially reach somewhat less than 362 mph (ignoring all drag other than wind). I believe Tesla's 0-60 time is probably mainly tire friction limited rather than power-limited. It achieves average forward G's of 1.37G's, which is really pushing what people think matches the maximum frictional coefficients of street-legal tires using modern technology. Non street-legal F1 tires reach about 5G’s on braking. This is equivalent to a force of 6200 lbs-force acting on the Tesla with mass of 4766 lbs-mass. If there were a theoretical abundance of power available to sustain keeping the tires at their frictional limit, the Tesla Model S Plaid would max out at 628 mph in the absence of additional frictions beyond additional wind resistance. At this speed, 628 mph, the tires would lose traction if any more power was applied to the wheels. To reach this speed would require over 8 times as much horsepower as the Tesla Model S currently uses to reach 216 mph. So anyways, that's the ceiling for these vehicles. Somewhere around 8,000 horsepower. However, worth noting that the fastest land speed records for wheel-driven vehicles is only 400mph. And the fastest electric wheel-driven vehicle (Buckeye Bullet) achieved >300mph (almost 500kph) using an engine with only 400HP. It is very, very thin though with minimal frontal area, and definitely not street-legal. Assuming that 400mph is a hard limit for tires and other mechanical systems, that would require the Tesla to produce about 3400 horsepower.