Here are my impressions of the following cars:
2018 Macan GTS (pre-facelift, 2.9L twin turbo Porsche motor, PDK) - Lightning shifts, excellent gearbox, underwhelming motor. It makes great noises, it's just not fast or quick. Our Q5 e-tron would smoke it 0-60. Driven in a vacuum, it would likely feel great, but you can totally tell that this is an older platform than the B9 Audis. The steering is vague, the handling is jarring yet still has too much body roll in a corner, and the touch points feel 2005 (weird key-like ignition thing, turn signal stalk, shifter from a 1G Cayenne, etc). It had all the right options (Sport Chrono, PASM, valved exhaust, etc). It just felt like an Audi with a PDK, and frankly Audi makes a much better Audi than Porsche does.
2020 Macan base (post-facelift, 2.0L turbo Audi motor, PDK(?)) - This feels like the Audi DSG that's in our Q5, not the PDK in the GTS. Shifts are fast, but lazy compared to the GTS driven back-to-back. Slow. The updated screens are nicer, but still old tech compared to our 2020 Audi, and not much else has really changed. I would not buy a base Macan when an Audi Q5 is available.
2021 Audi SQ5 (B9, 3.0L single-turbo hot-V, ZF 8-speed) - I really thought this would be the one. The B9 chassis is a pretty massive, noticeable step forward over the B8 (what our S4 is and what the Macan is built off of) in chassis dynamics, ride, handling, steering feel, and build quality feel. The interior was excellent, the tech was great (wireless Apple Car Play and Android Auto, digital gauges including a NAV screen, LED headlights with auto-dimming for oncoming vehicles, etc). The ZF was good, but lacking compared to the PDK back-to-back. It's lacking in torque compared to the B8 SQ5 (3.0L supercharged V6) I've driven before, so it's slower in the 0-60. Honestly, if VAG stuck the Porsche PDK in this car it would be the winner. That's what the post-facelift Macan S drivetrain is, but it's still the B8 chassis.
2023 Audi Q4 e-tron - Woof. Slow, cheap, not an Audi experience at all. Couldn't pay me to drive one.
2024 Audi Q5 e-tron (B9, 2.0 Turbo 4 with an electric motor, 376 HP) - Felt like home. Slightly bigger/better battery than our 2020, but no performance difference. Literally the exact same car. I'm worried about the build quality of the Mexico-built Q5's (base and e-tron, but not the SQ5) as one of the ones we went to drive literally disentigrated the driver's door latch (with 11 miles on it) and the door would no longer stay shut, and the one we did drive totally had a failed dual-mass flywheel like ours did. I wish they built the Q5e in Germany to be honest.
2023 Audi Q8 e-tron (all-EV) - Loved it. Really want to drive the 24's, they are much different, especially the 3-motor SQ8 e-tron. Waiting for the dealer to get some. They depreciate *HARD* though. Lease would be smarter maybe? Can't really afford it though ($85K and up!).