I agree with you. Feels like they came and went like lightening. I guess you had to get a special invite. Here are the performance specs:
Model S Signature:~1,020 hp tri-motor AWD
0-60 mph: 1.99 seconds
Top speed: 200 mph
Range: ~309 miles EPA est.
Quarter-mile: ~9.23s @ ~155 mph trap
Model X Signature:~1,020 hp tri-motor AWD
0-60 mph: 2.5 seconds
Top speed: 163 mph
Range: ~303 miles EPA est.
They include adaptive suspension, excellent handling, and the latest Tesla tech (yoke, big touchscreen, etc.).