Informative review by R&T on the new Track mode
Tesla Model 3 Performance: Track Test
"It's easy to make a car that handles well. But if you want to make it go over bumps and ride well, be comfortable, that is really difficult to do," Lars Moravy, Director of Chassis Engineering tells me trackside. "We worked long and hard to make it be able to go around the track fast, be agile, be responsive, but not shatter your teeth out."
Track mode
To understand what this new mode does, you need to forget most of what you know about typical stability and traction control systems. "Our Track Mode doesn't disable features, it adds them," Michael Neumeyer, Manager of Chassis Controls, told me. But more importantly, it does some tricky things with the car's regenerative braking.
On the street, you use regen for about 90 percent of your normal braking. When you lift off the accelerator, the electric drive motors become generators, sending charge back into the batteries.
Out on the track, regen becomes a tool to help balance the car's chassis.
Those light, delicate brake modulations you use to adjust a car's attitude mid-corner? Now you get them with a slight lift of the accelerator. It's instantaneous, braking and acceleration balanced from one pedal.
It also gives the Model 3 Performance a nifty trick no other Tesla can do: Lift-throttle oversteer, coded right into the software. In Track Mode, the regenerative braking is increased significantly—up to 0.3g of deceleration, compared to a max of 0.2g in street trim. When you lift in a corner, the regen tosses all the weight forward, loading up the front axle. The rear tires, now regenerating under much less weight, break loose. The stability control looks the other way. Presto! Oversteer.
At this point, if you were to, say, nail the accelerator, the system would overdrive the front axle motor, powering the front tires to pull you neatly out of the corner in a controlled return to the line. You'll kill me for saying it, but this sport sedan has the same toss and catch that makes the best front-drive hot hatches such a joy to hustle—bolstered by no-joke instant horsepower and the predictability of vectoring all-wheel drive.
As you can imagine, this is a ton of fun. The magic of the Model 3 platform is in the feedback. The quick steering murmurs surface changes into your fingertips. The chassis lets you know exactly where and when the weight is shifting. Tossability, low polar moment and charm are all baked into the design. The Performance upgrades just let it sing louder.
The car minimizes distraction. With no engine noise to out-shout everything, and no concerns over shift points or powerband, you can focus on the most elemental part of track driving: The tires. I've never had such a clear understanding of the millisecond changes in front-end grip through a corner. You hear, and feel, everything going on at the contact patches, even at 100-plus. Pushing wide through Turn 1? Dab in a little regen, load up that front axle, and get ready to rotate. Feeling light over Lime Rock's puckering Uphill? You'll hear it, and correct for it, at a level you've never experienced in a bellowing internal-combustion car.
Read the whole review here:
Tesla Model 3 Performance: Track Test