One of the things that I've been wondering for a while about is the RPM-limit. Why is it at (just over) 110mph? Especially with the all-wheel drive option, with a 0-60 acceleration of 3.5 seconds and 150kW of power, it shouldn't be a problem to get over 110mph. Add to that that the biggest barrier to high speeds is generally drag, and the Aptera is specifically designed to be as low-drag as possible, and I really don't see why higher speeds shouldn't be possible.
It may not be as relevant in the US, where the max highway speed is 85mph, but in Germany, for instance, there are plenty of highways with no speed limit, and sometimes (at least IMO) it's quite possible to sensibly do up to about 200km/h - at least that's usually about where I draw the line. An RPM-limit of just over 110mph translates into about 180km/h, which seems kind of low for Germany, at least given the other specs of this car.
With no gear box, top speed is defined entirely by the max motor RPM and the chosen tire diameter. We don't have the full technical specs for this exact motor, but the first, larger Elaphe motor was developed with EU support so we have complete published information on that model. The max RPM for that model multiplied by the 195/45R16 tire diameter gives 110mph. Increasing the max speed by changing the motor or the tire size would decrease efficiency significantly. Even with the low drag coefficient, driving 120mph is still ~3 times less efficient than driving 60mph, so enabling this is definitely not a priority for an environmentally focused company like Aptera.
Who cares? 110mph is plenty fast for me. I've only gone over 90mph a hand full of times in my lifetime let alone 110mph. Aptera's ethos is to be the most efficient and sustainable vehicle in the world. NOT to be the fastest.
'Nuff said...... Keeping it slow in Whittier, CA
Ya now that I'm spoiled by INSTANT acceleration, gas cars scare me when I punch it to pass & nothing happens for half a second in which I think "Oh crap! Is it broken?!". Then there's a bunch of noise from up front. Then it finally starts to go.
With nearly equal weight on each tire, Aptera should corner nearly neutral, but the new swaybar they're adding could add the understeer required for the average skill-free driver but dreaded by those of us with some experience.
& ya, compared to my 500e, eGolf is boringly stable sliding at 55mph around my favorite "30mph" offramp. Sliding at 50mph in my Fiat was exciting.
That's with both on stock tires. With better tires now on the Fiat, it slides at 63, but that's no more fun than it was before at 50. "Driving fast is more fun in a 'slow' car than a 'fast' one." (sorry, I don't know where that quote is from)
I hit 130mph a few times in my V8 240Z, & close to that on my Yamaha RD350, & by FAR the scariest thing was the thought of getting caught.
I have more low-stress fun in the city, by accelerating rapidly to not-quite-ticket speeds, & cornering rapidly at not-quite-ticket speeds.
My current car will only go 85mph, & I've only had it that high a few times, since even that would be a hefty ticket.
Go to 13:55, they talk about in wheel motors and driving one that couldn't go over 92mph.
I'm not convinced that speeds higher than 110 mph serve any purpose in a vehicle whose primary design goal is efficiency.
It's a three wheeled vehicle, do you really want to go 110MPH in a three wheeled car, seems suicidal.
I have a little hope for a Germany button, i.e. unlimited speed possibility in the Europe version.
One of their recent vids said it was a hardware compromise between top speed & acceleration.
So apparently they could permanently increase the top speed but it would also permanently increase the times for 0-60, quarter-mile, 30-50, etc.
As noted above though, the production motor will be tuned specifically for Aptera, hopefully improving both factors.
The Elaphe motor that is used is a derivative of the m700 motor I believe. This has a top RPM of 1500, thus the 110 mph limit. This is one of the drawbacks of an in-wheel motor. Given all the other characteristics of the system, I think this is a good trade-off. Look up the m700 motor on Elaphe's website and I think you will be impressed. It looks like it will be capable of sub 3 second 0-60 sprints with a peak power of 75KW per wheel.
I've been wondering that for awhile too, but since I have only driven over 110mph one time, for about 5 seconds, I don't really care. The car is competing with supercars though, so it should technically have a higher top speed, at least 135mph.
My concern is the 0-60 time. Ever since I've heard under 3 second 0-60 and heard that Elaphe keeps making it more powerful, my excitement level went through the roof. But in recent videos they still keep touting 3.5 second 0-60, which is amazing but it's almost disappointing now if it's ONLY as fast as a Mustang Mach-E GT Performance lol.
Interesting. Although I am kind of curious, why couldn't they increase the voltage? I'm assuming they would need to redesign the circuit for the increased voltage? (And what's the advantage of the lower voltage, the way it's planned?)
2/2
Their reason; 1/2