2-seater sports.

Designations again complex, but original version was TW-33-10,  and only the 'year' figures were changed thereafter. Chassis and body as for twins but compact two-bearing watercooled four gives even greater smoothness: 10-65mph claimed in top. Always paneled bodies, dual colour finish for all De Luxe types from '34 onward, and central vertical bar to radiator on 1936 cars.