Updating your STS interior starts with the seats. New STS sport racing seats are made to be comfortable and hold you tight in the corners. If you just need one STS interior part or maybe two or more, you can order as many as you need. Outfit your car with some new STS interior parts to make it a better place to sit on long trips. These STS car interior parts are made to be durable and last the life of your Caddy. Upgrading to a new STS steering wheel is another way to make your car sportier and more fun. A new STS wheel will allow you to get a grip on the road and make your car feel more stable over bumps and through corners. Some new STS interior accessories are truly going to make your car feel more unique.