Onyx Sell My Car Brisbane is one of Brisbane's largest independently owned reputed car buyers. We buy cars every day and can usually do so on the same or the next day. Our experienced and caring staff are ready to take care of every job, large or small, quick or slow, and we look forward to doing so for you. From now until the handing over process is completed, our team will work hard for you, freeing up your time and resources to offer you peace of mind.