Under the Hood brings Flat-12 Boxer Engines, Tesla Recalls, and KIA-Apple Collabs. 4-6-8 is back to test Randy's car guy ear, Jon digs into the archives and recounts his curb happy adventure with an old e36, and The 5-Year Better Buy pins the new Supra and the BMW M2C to see which car will be a better purchase in 5 years.