Can you give me an estimate of how much it costs to maintain an Infiniti QX30?

Repair experts state that the yearly upkeep expenses for the INFINITI QX30 are typically just below $300. As the vehicle ages, these maintenance costs are expected to increase. The routine service mainly consists of regular oil changes, along with brake and tire checks. It is recommended to have a synthetic oil and filter change and brake inspection done at 7,500 miles. Around 50,000 miles, there may be a need to replace brake pads, costing between $300 and $400 for parts and labor. When the car reaches 90,000 to 100,000 miles, spark plug replacement might be necessary, especially if you're experiencing issues like hesitations, misfires, or stalling. This particular service can range from $200 to $250. Additionally, there might be a need to repair stretched timing chain tensioners, which could cost around $250 to $300 for parts and labor.