Thor - Aurora Automatic Machinery Company (1903-1918)
Typ / Model	Production time	Capacity	Cylinders / Engine	Power	Serial no.	Top speed
1906 Thor "Torpedo Tank Racer"	1906	243 cm³ (16 ci)	1 cyl., inlet-outlet-exhaust	3 PS		96 km/h
Model Single	1908	488 cm³ (30.50 ci)	1 cyl., inlet-outlet-exhaust	3 PS		64 km/h
Model IV	1907	488 cm³ (30.50 ci)	1 cyl.,	3 PS		64 km/h
Model 8C	1908	1.000 cm³ (61 ci)	2 cyl., V-twin 50°			96 km/h
Model W	1908	600 cm³ (381/8 ci)	1 cyl. (3.57 x 3.80 inch)			88 km/h
1908 Thor Racer	1908	1.000 cm³ (61 ci)	2 cyl., inlet-outlet-exhaust, V-twin 50°
Model O	1911	1.000 cm³ (61 ci)	2 cyl., inlet-outlet-exhaust, V-twin 50°	9 PS
Model U	1914-1916	978 cm³	2 cyl., 4 stroke, inlet-over-exhaust, V-twin 50°	7 PS		88 km/h
Model U (76.25ci)	1914-1918	1.245 cm³ (76.25 ci)	2 cyl. (3.25 x 3.60 inch), 4 stroke, ohv, V-twin 50°	12 PS		88 km/h