That goes for everyone!
Also, which engine and is it front, rear or all wheel drive?
It sounds like the new tires are not balanced correctly or are defective.
Is the vibration more prominent at the wheel or does it feel more like it's shaking your chair (feel with your hands or feel with your butt? Lol).
If this vibration kicks in without the brakes applied, I'd say the brakes are okay. Tires, driveaxles, bearings, balljoints, etc. that's where u wanna look.