Blue Dot Motorworks' Narwhal retrofit converts truck/van/SUV drivetrains into plug‑in hybrids by inserting a motor/clutch/transmission in the driveshaft and adding an LFP battery pack, targeting ~35 miles electric range, ~80 mph top speed, ~80% smaller battery than BEVs, ~1‑day install, $6k–$10k kits, and production in 2028–29.