Tesla sales across Europe plunged by half last month even as growth in the electric car market picked up pace, according to data released Tuesday, indicating how much the Tesla brand is suffering because of the backlash against CEO Elon Musk over his far-right views.

In one sign that Tesla appears to be losing ground to cut-price Chinese brands, sales at China’s SAIC zoomed up 54% in April, according to the ACEA figures. SAIC owns a slew of auto brands including U.K.-based MG, known for its low-cost EV models.

Sales of the firm’s vehicles tumbled 49% to 7,261 in April from 14,228 in the same month the previous year, figures suggest.