The 2019 Toyota Mark X, particularly the GRMN variant (released in March 2019), features a 3.5-liter V6 engine (2GR-FSE) producing 318 horsepower, paired with a 6-speed manual transmissionIt is a rear-wheel-drive sedan with a 5-person seating capacity and a weight of 1560 kg. The dimensions are approximately 4795mm in length, 1795mm in width, and 1420mm in height. 

Here's a more detailed breakdown:
Engine and Performance:
  • Engine: 2GR-FSE 3.5-liter V6.
  • Transmission: 6-speed manual (GRMN).
  • Horsepower: 318 hp.
  • Torque: 380 Nm (38.7 kgf・m) at 4800 rpm.
  • Fuel Type: Premium Gasoline.
  • Drive System: Rear-wheel drive (RWD). 
Body and Dimensions:
  • Body Type: Sedan.
  • Number of Doors: 4.
  • Seating Capacity: 5.
  • Length: 4795 mm.
  • Width: 1795 mm.
  • Height: 1420 mm.
  • Weight: 1560 kg (GRMN). 
Other Features:
  • Fuel Tank Capacity: 71 liters. 
  • Standard Colors: White Pearl Crystal Shine, with optional Black, Silver Metallic, and Dark Red Mica Metallic. 
  • Optional Features: Air Force air suspension (allowing for independent adjustment of front and rear ride height).