Power-to-weight ratio

Columns: Vehicle | Power | Vehicle Weight | Power to Weight ratio
TH ! NK City 2008 | 30 kW / 40 bhp | 1038 kg / 2,288 lb | 28.9 W/kg / 56.9 lb/hp | Messerschmitt KR200 Kabinenroller 191 cc 1955 | 6 kW / 8.2 bhp | 230 kg / 506 lb | 30 W/kg / 50 lb/hp | Wright Flyer 1903 | 9 kW / 12 bhp | 274 kg / 605 lb | 33 W/kg / 50 lb/hp | Tata Nano 624 cc 2008 | 26 kW / 35 bhp | 635 kg / 1,400 lb | 41.0 W/kg / 40 lb/hp | Bombardier JetTrain high-speed gas turbine-electric locomotive 2000 | 3,750 kW / 5,029 bhp | 90,750 kg / 200,000 lb | 41.2 W/kg / 39.8 lb/hp | Suzuki MightyBoy 543 cc 1988 | 23 kW / 31 bhp | 550 kg / 1,213 lb | 42 W/kg / 39 lb/hp

Example questions:
What years did the company produce the automobile with the power to weight ratio of 42 W/kg / 39 lb/hp ? | What competition did the steam locomotive with a power to weight ratio of 3.5 W/kg / 476 lb/hp win in October 1829 ? | What company produced the range of pickup trucks with a power to weight ratio of 25 W/kg / 66 lb/hp ? | What year was the machine built that has a power to weight ratio of 2.1 W/kg / 779 lb/hp ?

Answers:
1983 to 1988 | Rainhill Trials | Navistar International | 1885