Latest in Tech

Editorials on the economy, technology, and lifestyle by Dr Jiulin Teng
Cover for post Modern Ferrari V12 GTs: Evolution Over Six Generations
13 Jul 2024
Modern Ferrari V12 GTs: Evolution Over Six Generations
Some of Ferrari’s most collectible and unforgettable road cars are V12-powered grand tourers. Today, we look at the evolution of modern Ferrari two-seat GTs after the return of the front-engine V12 (berlinetta) layout over six generations.
Cover for post Mercedes S-Class vs BMW 7-Series: Comparison Over the Last 6/7 Generations
07 Jul 2024
Mercedes S-Class vs BMW 7-Series: Comparison Over the Last 6/7 Generations
Today, I compare the Mercedes S-Class and the BMW 7-Series over the last 6 or 7 generations from the matchup between W126 and E23, E32 to today's battle between W223 and G70.
Cover for post Dynamic Fuel Management in LT Engines Is the Most Advanced Cylinder Deactivation Technology Today
04 Jul 2024
Dynamic Fuel Management in LT Engines Is the Most Advanced Cylinder Deactivation Technology Today
Today, I briefly cover how GM’s Dynamic Fuel Management (DFM) system works. It should then be obvious why it is superior to conventional cylinder deactivation technologies.
Cover for post EA824 vs EA825: Comparing Two Generations of the Audi / Porsche 4.0 TFSI Engine
30 Jun 2024
EA824 vs EA825: Comparing Two Generations of the Audi / Porsche 4.0 TFSI Engine
Consumers commonly confuse the VAG EA824 and EA825 engines with each other. However, the Audi-designed EA824 and the Porsche-Audi EA825 are fundamentally different. Today, I compare the two across eight aspects.
Cover for post Cadillac Escalade: Mechanical and Design Evolutions Over 5 Generations
29 Jun 2024
Cadillac Escalade: Mechanical and Design Evolutions Over 5 Generations
Today, I briefly go over the mechanical and design evolutions of the Cadillac Escalade over its first five generations.
Cover for post Porsche Cayenne: Mechanical and Design Evolutions Over 3 Generations
28 Jun 2024
Porsche Cayenne: Mechanical and Design Evolutions Over 3 Generations
Today, I briefly go over the mechanical and design evolutions of the Porsche Cayenne over its first three generations. Emphases will be given to drivetrain and engine choice.
Cover for post Nikasil, Alusil, Lokasil, and Silitec: Cylinders in liner-less aluminium engine blocks
15 Jun 2024
Nikasil, Alusil, Lokasil, and Silitec: Cylinders in liner-less aluminium engine blocks
Today, we briefly examine the three main types of liner-less cylinder treatment methods that originated from Germany, Nikasil, Alusil, and Lokasil, and their variants.
Cover for post Mercedes M156 vs Maserati F136Y (4.7) vs BMW S65, Iconic Designs Compared
30 May 2024
Mercedes M156 vs Maserati F136Y (4.7) vs BMW S65, Iconic Designs Compared
Today, I compare the Mercedes-AMG M156 6.2L V8, the Maserati F136Y 4.7L V8, and the BMW S65B40 4.0L V8 across seven aspects. These engines use equivalent technologies but differ appreciably in their design goals.
Cover for post Autonomous Driving: Three Major Safety Concerns
28 May 2024
Autonomous Driving: Three Major Safety Concerns
Self-driving cars have three major safety concerns: algorithm and computing power, electronics equipment, and network security. Today, I briefly explain each of them.
Cover for post Nissan VR38DETT vs Alfa Romeo 690T (Quadrifoglio): Iconic Designs Compared
25 May 2024
Nissan VR38DETT vs Alfa Romeo 690T (Quadrifoglio): Iconic Designs Compared
Today, I compare the design of the Nissan VR38DETT found in the R35 GT-R and the Alfa Romeo 690T found in Quadrifoglio models along six aspects: engine block, bank angle & crankshaft, oil pump, displacement & stroke ratio, fuelling, and valve timing.
Cover for post S58 vs 2JZ: Iconic Engine Designs Compared
21 May 2024
S58 vs 2JZ: Iconic Engine Designs Compared
Today, I compare the designs of the BMW S58B30 and of the Toyota 2JZ-GTE in eight aspects from the bottom up, including block, bearing, oil pump, stroke ratio, piston and conrod, fuelling, air flow, and valve timing.
Cover for post Five Modern High Gear-Count RWD Automatic Transmissions: Similarities and Differences
19 May 2024
Five Modern High Gear-Count RWD Automatic Transmissions: Similarities and Differences
Today, I compare five modern high gear-count RWD automatic transmissions in terms of their similarities and differences in design. They are Aisin’s 8-speed, Ford-GM 10-speed, Hyundai 8-speed, Mercedes 9G-Tronic, and ZF 8HP.