Latest in Tech
Editorials on the economy, technology, and lifestyle by Dr Jiulin Teng
07 Jan 2026
The Ford-GM 10-speed is an evolution of the ZF 8HP that doubles down on the original’s gear train design and philosophy. Today, let us analyze its advantages and trade-offs and delve into how its gear train works.
04 Jan 2026
The Toyota–Aisin 10-speed automatic transmission combines lessons from the Aisin 8-speed and ZF 8HP into one of the more compelling, elegant designs. Today, let us analyze its advantages and trade-offs and delve into how its gear train works.
01 Jan 2026
Mercedes 725.0 9G-Tronic, aka NAG3, is one of the most advanced automatic transmissions for passenger vehicles today. Let us analyze the advantages and trade-offs of the 9G-Tronic and delve into how its gear train works.
30 Dec 2025
The ZF 8HP represents both a major evolution in the philosophy of the 6HP and a considerable revolution in gear train design. Today, let us analyze its advantages and trade-offs and delve into how its gear train works.
29 Dec 2025
The ZF 6HP can be considered the world’s first modern automatic transmission, influencing all future models with a series of conscious trade-offs. Today, I analyze the advantages and trade-offs of the ZF 6HP and delve into how its gear train works.
27 Dec 2025
The Mercedes 722.9 7G-Tronic was the world’s first 7-speed automatic transmission for passenger cars. Today, let us analyze the advantages and trade-offs of its design and delve into how its gear train works.
25 Dec 2025
The Toyota–Aisin AA80E remains the most robust and reliable 8- and higher-speed transmission. Today, I analyze the advantages and trade-offs of its design and delve into how its gear train works.
20 Dec 2025
In this article, I comment on the seven best-looking Chinese EVs on the market.
18 Dec 2025
In no small part thanks to how controlled TCC slip is managed, modern automatic transmissions can have noticeably different drive feel and reliability.
12 Dec 2025
There is a lot of confusion and certain amount of misinformation on the mechanics of AWD systems. Today, I cover the six types of AWD mechanisms found in passenger vehicles.
10 Dec 2025
I discuss the five passenger cars currently on the market with the best designs to me.
15 Mar 2025
Despite crafty marketing stories, the Volkswagen Phaeton is objectively worse than the D3 Audi A8 and not a very good car even at launch. Today, I list four hard facts to support this argument.











