Dr. Lars Hofmann, Volkswagen Research department powertrain, talks about Volkswagen’s new highbrid parallel system. What does Toyota and General Motors use and how is VW’s different? The new Highbrid uses a 7-speed Direct Shift Gearbox (DSG) transmission with TSI and dry clutches. This allows for fuel economy of about 100 kilometers using 6 liters of petro. TSI and CNG (natural gas) increases turbo lag, but Volkswagen’s Twin avoids turbo lag.