The 8-cylinder Unic "Type H1" introduced in 1928 was progressively updated in accordance with the changing tastes of the time:  by 1933 car had evolved into the Unic "Type H3" and the engine size had grown from ​2 ¹⁄₂ litres to 2646 cc.
  October 1933 was nevertheless the last time an 8-cylinder passenger car would appear on the Unic show stand.

For the next few years the company focused on 4-cylinder cars in the 11 CV/HP tax band, just as they had through the mid-1920s.
  For 1934 Unic announced their new "Type U4" model, featuring a 2-litre side-valve engine and now also employing a 4-speed transmission.
  The body-work of the standard 5-seater "berline" (sedan/saloon) was no longer completely flat-backed, but the proportions of the car may have drawn criticism, since between the car's October 1933 launch and May 1934, the rear overhang was slightly increased, while at the front a slightly raked grill replaced the flat one, and the overall profile became a little more streamlined.
  In addition to this passenger car, Unic continued to produce through 1934 a similarly sized taxi of "great robustness".
The 8-cylinder Unic "Type H1" introduced in 1928 was progressively updated in accordance with the changing tastes of the time:  by 1933 car had evolved into the Unic "Type H3" and the engine size had grown from ​2 ¹⁄₂ litres to 2646 cc.   October 1933 was nevertheless the last time an 8-cylinder passenger car would appear on the Unic show stand.
For the next few years the company focused on 4-cylinder cars in the 11 CV/HP tax band, just as they had through the mid-1920s.   For 1934 Unic announced their new "Type U4" model, featuring a 2-litre side-valve engine and now also employing a 4-speed transmission.   The body-work of the standard 5-seater "berline" (sedan/saloon) was no longer completely flat-backed, but the proportions of the car may have drawn criticism, since between the car's October 1933 launch and May 1934, the rear overhang was slightly increased, while at the front a slightly raked grill replaced the flat one, and the overall profile became a little more streamlined.   In addition to this passenger car, Unic continued to produce through 1934 a similarly sized taxi of "great robustness".
Unic