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Have owned both, 997.2TTS and currently 991.1 GT3. Which is better, as mentioned already it depends on application. For the street, the TTS has no equal. It’s simply the best. Great handling, comfort, luxury feel, incredible low-end torque (which NEVER gets old) and fast as hell. If you are also into modding, the turbo platform is the best and it’s easy to unleash an additional 100HP, with a minor tune.

For the track however, the GT3 has no equal. The GT3 is lighter, has much better steering response, and it’s linear power delivery make it ideal for the track. The GT3 shines in its braking as lighter means better deceleration and later brake application (your rotors will thank you. The TTS is so heavy that it consumes pads and rotors way more). The GT3’s RWD (vs. TTS AWD) translates to improved steering response and scalpel like handling to the TTS heavier handling. The GT3 also rotates better on track as you can get the rear to slide a bit, with throttle steering, to aid rotation (if you manage to get the TTS’ rear loose, you’ve messed up and it’s not a good feeling). The only edge the TTS has on track is sheer power and straight line speed (580HP/553 lb-ft vs. 500HP/339 lb-ft for the 991.2 GT3). Straight line speed and AWD will get you low lap times but they mask a lot of driver errors that the incredible nannies correct behind the scenes. The GT3 is less forgiving.

I switched to a GT3 because I wanted to be a better driver on the track but I find that I drive my GT3 less and less on the street as it doesn’t come close to matching the comfort and everyday utility of my TTS. Neither is better than the other, both excel at their respective design/build intentions.

It’s not a pissing contest, I’m just sharing my opinion having owned both. While I’ve never tracked 991TTS (mine was a 997.2TTS), I currently track regularly with a great guy and solid driver in the Advanced Black group in my PCA region who drives a 2017 991TTS very well. I am within 1-2 secs of him in my lowly 991.1 GT3 (475HP/329 lb-ft) at VIR, WGI and NJMPs. His car pulls ridiculously strong on the straights however I manage to claw back in the more technical sections. I love the TTS platform and will definitely own another one in the future, however for right now, tracking is my focus and for that, the GT3 is simply a better tool, for me. The TTS in any model year is an amazing car, as mentioned, a super car for the street. To each his own.

Interesting opinion and you are entitled to it but I totally disagree. The 997 TT/S are well balanced and the only “handling issues” have nothing to do with the AWD system but with the default factory normal PASM setting which is tuned too soft from the factory and induces unwanted dip, squat and lateral rolls. Most owners address this with a combination of aftermarket coil-overs/springs, sway bars and/or TPC’s DSC module. The 997TTS then handles beautifully.

The 991 TTS did get a revised electro-hydraulic AWD system from the 997 TTS but in testing, most reviewers couldn’t discern any noticeable difference in how the system allocated torque between the front & rear axles from the AWD system in the 997 TTS. The real reason why you probably felt more stable, and could push the limits further in the 991TTS on track (vs. the 997TTS or RS) has more to do with the 991s wider track, longer wheelbase, better aero, re-calibrated steering, new rear-wheel steering, new PDCC (Dynamic Chassis Control) and don’t forget wider front tires. I have driven the 991TTS and I know the technical differences between the 997 and 991 as I spoke to Porsche as I considered “upgrading”. I opted for the 991GT3 for the reasons I mentioned earlier.

Many who drive the 991TTS on track are oblivious to the bevy of unobtrusive electronic driver aids that are constantly working. The 991TTS has a revised PTM (traction management) which works brilliantly with the PASM system to keep the 911TTS in line...it is very very hard to slide the 991TTS unless you really screw up! These aids give many drivers the illusion of enhanced driving ability as they turn faster lap times (the 580HP/553 lb-ft) doesn’t hurt either. I am not saying you are not a good track driver however don’t discount the engineering helping you (a little understanding of the technical aspects of the car and how it compares to prior models wouldn’t hurt either). There is a reason the 997TT/S is regarded as the last of the visceral ‘modern’ turbos and arguably the best to combine classic 911 styling and modern supercar performance, while retaining a direct line to the classic 911 interior of old! I love all TT/S but please don’t say the 997 had “horrible balance and handling”, it’s simply not an accurate statement.