What are the ongoing running costs for a JDM car?

JDM sports cars are not cheap daily drivers. Premium fuel, higher insurance premiums (specialty or agreed-value policies), specialist mechanic labor rates, and imported OEM parts (often 20-50% more expensive than domestic equivalents) add up. Turbocharged cars need more frequent oil changes and boost system inspections. Budget $2,000-$5,000+ per year for maintenance on a well-maintained GT-R, RX-7, or Supra above basic car costs.