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Volkswagen weighs using China-developed Xpeng tech in 75% of European core models

Group board member Thomas Schäfer says the CEA electrical architecture could underpin future Volkswagen, Cupra and Skoda models, but no decision has been made.

The Volkswagen Group is evaluating whether to use its China-developed electrical architecture in up to 75% of its future European core models, a move that would reshape the German firm's global engineering strategy as it seeks to cut costs. The discussions were confirmed by Group board member and Volkswagen brand CEO Thomas Schäfer, who said the China Electronic Architecture (CEA) could eventually be deployed across the Volkswagen, Cupra and Skoda brands in Europe.

The CEA was developed in partnership with Chinese EV maker Xpeng and is described as a zonal electronic and electrical architecture with high-performance central computing that enables software-driven innovations across all powertrain types, from combustion to hybrid to electric. Schäfer cautioned that no final decision has been made, though he indicated a strong leaning towards adopting the Chinese technology for Europe.

No European timeline or savings figure announced

Volkswagen has not announced when the CEA would reach European roads, nor which specific models would use it first. The 75% figure covers the firm's core models in Europe across Volkswagen, Cupra and Skoda, but the company has not said how much the switch would save. Schäfer said the group is "looking at the most cost-efficient way of making it ready for the volume segment" and is investigating whether the CEA is the right choice for Europe.

The potential pivot comes as Europe's largest car maker faces pressure to lower EV development costs and fend off competition from Chinese rivals.

The catch is that adapting either architecture for European rules and regulations adds cost, either by making Chinese-market cars more expensive or by creating a separate European variant. That trade-off sits at the centre of the group's decision, and it explains why Schäfer describes the process as unfinished rather than settled.

What it means for buyers

If Volkswagen adopts the CEA for Europe, the core models from three of its biggest brands would share a software and electronics foundation developed with a Chinese partner. That matters because electrical architecture determines how quickly a car can receive over-the-air updates, which driver-assistance features it can support and how much wiring and computing hardware it carries. A single architecture across combustion, hybrid and electric models would let Volkswagen spread development costs across a far larger volume of vehicles.

The smarter move for drivers and car buyers is to watch which models are named first. Schäfer's "I believe it will be" is a signal of intent, not a commitment, and the group has not confirmed a European launch date or a cost saving figure for the switch.

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New cars / TDCN ORIGINAL

GM patent application shows how a longitudinal variable-compression engine could be made easier to service

The filing replaces a single centre link with a two-piece assembly bolted from below the engine, a design GM says could allow conventional connecting-rod lubrication.

General Motors has filed a US patent application for a longitudinal variable-compression engine layout intended to be simpler to service, with the document published after being spotted by CarMoses. The filing describes replacing the centre link in GM's earlier variable-compression design with a two-piece assembly built around the crankshaft.

GM holds numerous patents on applying variable-compression technology to car engines, and this application is the latest step in packaging the fuel-saving hardware for engines mounted lengthways rather than transversely. Nothing in the filing confirms a production engine, and GM has not announced which vehicles would use it.

How the two-piece design works

In the earlier GM patent, compression variability of roughly 7:1 to 11:1 came from a special connecting-rod linkage: the connecting rod attaches to one end of a centre link mounted on the crankshaft, and the other end of that link connects through a control rod to a control shaft. A phaser adjusts the control shaft's rotational timing relative to the crankshaft, which governs piston movement and varies compression.

The new application would swap that centre link for a two-piece assembly assembled around the crankshaft, with one part connecting to the piston rod and the other to the control rod. The bolts joining the two halves would be reachable from below the engine, likely with the oil pan removed. GM also says the design would allow conventional lubrication of the connecting rods, which together with the two-piece link could make the engine easier to service and less prone to bearing-related problems.

That matters because service access is one of the practical hurdles for variable-compression hardware. An engine that needs specialist attention deep inside its bottom end is a harder sell to fleets and high-mileage truck buyers than one a technician can strip from underneath.

Why the control shaft sits above the crankshaft

GM's design places the control shaft above the crankshaft, which the filing says frees space below a longitudinally mounted engine for engine mounts or for the vehicle's steering or four-wheel-drive equipment. That packaging question is central to longitudinal applications, where the engine sits front-to-back and the space underneath is contested by driveline and chassis parts.

GM's arrangement would also let the expansion stroke run longer than the compression stroke, by up to 40 percent, which carries potential efficiency benefits. Nissan's VC-Turbo, already on sale, achieves its Atkinson-cycle effect through valve timing instead, and it is designed for transverse front- and all-wheel-drive applications. Honda has commercialised a comparable extended-expansion concept called EXlink in household cogeneration units that supply electricity and hot water.

What the drawings show, and what they do not

The patent drawings depict a petrol inline-six, a layout GM does not currently use, but the filing is not evidence that such an engine is planned. The same concept could be applied to engines such as the L3B 2.7-litre four-cylinder, the unit with sliding cam sleeves used in Chevrolet and GMC half-ton trucks, which could also find its way into a new Camaro or Buick sedan.

GM's record supports reading the filing as more than paperwork: the company has brought its own versions of cylinder deactivation and sliding camshafts to production, and is currently enlarging and boosting its truck V-8s without entirely sacrificing efficiency. Variable compression would be the next fuel-saving technology to move from that pipeline into a wider range of engines, if the patent work translates into hardware.

The catch for buyers

A patent application is not a product announcement. No timeline, no confirmed engine family and no vehicle has been named, so drivers should treat the serviceability claim as an engineering intention rather than a specification. The detail worth watching is the two-piece link: if it reaches production, routine work on a variable-compression engine could look much like work on a conventional one, which is the difference between a niche technology and one that can be sold across a truck range.

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