What's the difference between UberX, XL, Comfort, Black, and SUV(02)

What's the difference between UberX, XL, Comfort, Black, and SUV(02)

Image gallery: Uber Xxl Size

Uber super-sizes service, adds 'uberXL' in Baltimore - Technical.ly Uber XXL? New Ride Type in Orlando//@therideshareculture - YouTube What's the difference between UberX, XL, Comfort, Black, and SUV