Racing seats (aftermarket competition seats) are not as adjustable as stock seats (or factory seats). They can weigh about 12 to 16 lbs a pair and are stronger than factory seats.

The advantages to stock seats (or factory seats) are that they are comfortable and easy to adjust whether your grandma or your best friend is in the seat. Some come in leather, are heated in the winter and cooled in the summer, or come with built-in speakers.