Today’s Driveway Brief: Denza’s Z9 GT EV lands with intent, Mercedes courts Samsung for 2028 batteries, and JLR’s mild‑hybrid recall gathers steam

Three very different notes on the same sheet of music today: a Chinese luxury EV with grand‑touring swagger, a German battery supply shuffle that could change how fast you charge on winter mornings, and a British recall story that should’ve happened sooner. Grab a coffee; let’s get into it.

Denza Z9 GT EV: Big-arc grand tourer vibes, European focus

Autocar’s first review of the Denza Z9 GT EV paints a picture I’ve been expecting from BYD’s premium offshoot: long-wheelbase poise, cabin polish that’s come a long way in a short time, and a serious tilt at Europe’s fast electric GT set. Denza’s recent interiors I’ve sat in (think D9 and N7) were already buttoned-down—tight panel gaps, plush materials, and infotainment that boots quickly rather than finishing its espresso first.

What’s the Z9 GT EV trying to be? A mile-eating electric grand tourer, the sort you point at an Alpine pass or a Friday-night airport run and forget the rest. The stance is low and stretched, the surfacing clean. Even without getting it on a battered B-road, you can read the priorities: stability first, then silence, then the kind of effortless shove that lets you pass a dawdling lorry without waking the kids.

• Grand-touring brief: long-legged ride, hushed cabin, effortless pace.
• Luxury focus: big screens, quality touchpoints, and the usual BYD-grade software quickness.
• Euro-ready manners: steering and brake tuning aimed at long-haul confidence, not just city sprints.

Quirks and questions? Denza’s UI is fast but busy—owners I’ve spoken with on other Denza models sometimes dig three menus deep to change simple driver aids. Also, the fastback cargo opening in this segment often looks bigger than it is once you meet the sloping glass—pack soft bags for those ski weekends.

Mercedes to Samsung SDI from 2028: A quiet battery pivot with loud implications

Mercedes is set to shift a chunk of its next-gen EV battery sourcing to Samsung SDI starting in 2028, easing away from its current reliance on CATL. On paper, that’s a supplier change; in practice, it’s about chemistry, charging curves, and who controls your winter range anxiety.

Why it matters: battery partners dictate pack architecture, energy density, thermal management, and charge rates. I’ve spent weeks in current EQ cars—the EQE in particular—and while they’re serene cruisers, the charging profile can flatten just when you want to hit the road. The Samsung tie-up hints at denser cells and potentially punchier mid-curve charging, the bit of the session that most owners actually experience on road trips.

A few owners asked me whether this means solid‑state by 2028. Short answer: don’t plan your lease around it. Expect iterative gains—useful ones—rather than a step-change miracle. The more immediate benefit will be supply resilience and the freedom for Mercedes to tune packs to platform needs, not just supplier limits.

JLR’s mild‑hybrid recall: 6,000 complaints, one NHTSA review, and finally action

Carscoops reports that after roughly 6,000 owner complaints, it took a formal NHTSA review to push Jaguar Land Rover into a recall on certain mild‑hybrid models. The issue, as a few owners had already grumbled to me, centered on the 48‑volt system behaving badly—warning lights, inconsistent start/stop behavior, and in some cases drivability hiccups you absolutely notice mid-merge.

What to do if you own one: don’t wait for a letter. Call your dealer with your VIN and ask whether your vehicle is covered and what the fix entails. In past 48‑volt campaigns across the industry, software updates have fixed logic issues; hardware swaps happen if components don’t meet spec. Keep service records tidy—helpful if you ever need goodwill coverage.

• Symptoms owners reported: sporadic warnings, rough stop/start events, occasional loss of assist from the belt starter-generator.
• Why the delay matters: confidence. A quick, clear recall builds trust; waiting for a regulator to nudge you does the opposite.
• Practical tip: if your dash lights up, photograph the cluster and note conditions (speed, temperature, accessories on). It helps diagnosis.

How today’s threads tie together

Denza is arriving with the polish to court European buyers who’ve grown fussy about refinement. Mercedes is re‑architecting the one EV component you never see but always feel. And JLR is relearning that the ownership experience doesn’t start in the configurator; it starts the first time a warning light flickers. The EV era’s grown‑up phase is here—less theater, more follow‑through.

Bottom line

If you’re shopping premium EVs, the next 24 months will reward patience—especially with Mercedes’ 2028 battery cadence on the horizon. If you’re eyeing Denza’s Z9 GT EV, the early signals say it has the ride and cabin chops to make a continental dash feel easy. And if you own a JLR mild‑hybrid, be proactive: a quick dealer call beats a long roadside wait.

FAQ

What is the Denza Z9 GT EV and where will it be sold?

It’s a luxury electric grand tourer from BYD’s premium Denza brand, aimed squarely at Europe and other export markets with a focus on long‑distance comfort and refinement.

Why is Mercedes switching to Samsung SDI batteries from 2028?

To diversify supply and tap into next‑gen cell tech that targets better energy density and stronger charging performance, especially in the mid‑charge window most drivers use on trips.

Does the Mercedes–Samsung deal mean solid‑state batteries in showrooms by 2028?

Unlikely. Expect meaningful but incremental improvements rather than a sudden leap to solid‑state in that timeframe.

Which Land Rover/Jaguar models are affected by the mild‑hybrid recall?

JLR is recalling certain 48‑volt mild‑hybrid models; specifics vary by model year and build. Contact a dealer with your VIN for a definitive answer and next steps.

What should I do if my mild‑hybrid Land Rover shows 48‑volt or start/stop warnings?

Document the symptoms, avoid long trips until assessed, and schedule a dealer visit. If your vehicle is included in the recall, the repair should be performed at no charge.