The 3.7 is a very reliable and powerful engine. You won't need to worry about it. It's been around for the last five years and there hasn't been many major problems as I know of! The 2015 base does come with a lot more stuff than the previous year, like standard back up camera, keyless access, Bluetooth, remote start, lcd screen (track apps) in between the gauges. The IRS makes the car way more comfortable and steers beautifully!
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