Toyota is guided by a concept called kaizen—constant improvement. But constant improvement is also a relentless challenge. The Tundra Files tells the story of Toyota’s high stakes redesign of its full-size truck—the Toyota Tundra. This was a truck already lasting drivers more than a million miles. Where do you go from there? Through interviews with engineers, designers, and fellow Toyota enthusiasts, host Nick Heil looks at the unique problem of reinventing a truck that was already exceeding expectations. When you make the world’s most reliable vehicles, how do you make them better?