STREET-LEGAL CART SHOWDOWN · SLCS · TAMPA BAY, FLORIDA · How we make money — dealers pay for introductions; no brand pays for rank.

Advanced EV Advent 4L vs. Breezy EV Siera 4

By The Smith Family, reviewed by Brad · Independent, no paid placement · Last verified Oct 3, 2026

WinnerAdvanced EV Advent 4L

Advanced EV Advent 4L takes it. It wins on the better price and warranty. These sit in different divisions (value vs. premium), so weigh the price gap accordingly. The full side-by-side of verified specs is below — every figure carries a source and a verification date.

Key takeaways

  • The Advanced EV Advent 4L beats the Breezy EV Siera 4 on the better price and warranty. They sit in different divisions (value vs premium), so weigh the price gap.
  • Vehicle warranty: the Advanced EV Advent 4L carries 5 years vs the Breezy EV Siera 4's 2.
  • Florida out-the-door (6% state sales tax + ~1% county surtax on the first $5,000, FLHSMV title + initial registration): the Advanced EV Advent 4L lands about $10,315 and the Breezy EV Siera 4 about $12,007, base build before kits and dealer-quoted delivery.
  • Both the Advanced EV Advent 4L and the Breezy EV Siera 4 are factory-certified LSVs, confirmed against the NHTSA vPIC registry.

Head to head · Tampa Bay Edition

Advanced EV Advent 4L vs. Breezy EV Siera 4

COMPARISON · ADVANCED-EV-ADVENT-4L-VS-BREEZY-EV-SIERA-4
LAST VERIFIED 10/03/2026
Advanced EVAdvent 4LWinnerBreezy EVSiera 4
MSRP range$9,399$10,995
Top speed25 mph†1—
Range (high)—50 mi†2
Battery typelithium†1lithium†3
Battery capacity105 Ah†4125 Ah✓†2
System voltage51.2 V†148 V†2
Seats4†14†2
Length115.4 in†4111.8 in†2
Width53.9 in†447.6 in†2
Height81.1 in†477.2 in†2
Curb weight1,345 lb†4—
Motor power5 kW†45 kW†2
BrakesFour-wheel hydraulic disc†14 wheel disc brake + electronic parking†2
SuspensionLifted 4-wheel coil-over suspension†1Front: four-arm independent; Rear: leaf spring with damper†2
Display size—9 in†3
Warranty5 yr✓†52 yr†6
Battery warranty (total term)8 yr†78 yr†8
Battery full-replacement coverage—2 yr†8
Battery warranty terms8 years, pro-rated (ECO lithium pack; no full-replacement period published)†7—
LSV certified (street-legal capable)Yes†9Yes†10
Ground clearance—5.2 in†2
Range, normalized◆ computed~43 mi~48 mi✓

◆ Range, normalized is our figure, not the maker's: each pack's energy at a standard 0.125 kWh/mile, the same on every cart — an apples-to-apples check on the “up to” range claims above, which are usually measured at 19 mph on the largest optional pack.

†1 SOURCE: advancedev.com · VERIFIED 07/30/2026†2 SOURCE: breezyev.com · VERIFIED 10/03/2026†3 SOURCE: img1.wsimg.com · VERIFIED 10/03/2026†4 SOURCE: advancedev.com · VERIFIED 09/01/2026†5 SOURCE: advancedev.com · VERIFIED 09/01/2026†6 SOURCE: img1.wsimg.com · VERIFIED 10/03/2026†7 SOURCE: advancedev.com · VERIFIED 09/30/2026†8 SOURCE: img1.wsimg.com · VERIFIED 10/03/2026†9 SOURCE: vpic.nhtsa.dot.gov · VERIFIED 07/30/2026†10 SOURCE: vpic.nhtsa.dot.gov · VERIFIED 10/03/2026

◆ The verdict

Advanced EV Advent 4L

It wins on the better price and warranty. These sit in different divisions (value vs. premium), so weigh the price gap accordingly.

Save $1,596 vs the Breezy EV Siera 4

Winner

Why it won

price$9,399 vs $10,995warranty5-yr vs 2-yr

◆ Price the fight — Florida out-the-door

Florida out-the-door estimates (6% state sales tax + ~1% county surtax on the first $5,000, FLHSMV title + initial registration): the Advanced EV Advent 4L lands at about $10,315 and the Breezy EV Siera 4 at about $12,007, base build, before kits and dealer-quoted delivery.

Advanced EV Advent 4Lbase build · FL out-the-door

Advanced EV Advent 4LMSRP (verified)$9,399.00
FL sales tax (est.)6% state + 1.0% county surtax on the first $5,000$613.94
Title + initial registration (est.)FLHSMV: $77.25 new title + $225 one-time initial registration$302.25
DeliveryQuoted by the dealer — we never guess this number—
Out-the-door estimate$10,315

est. $165.36/mo — 20% down, 7.5% APR, 60 mo. Confirm real rates with the lender.

Breezy EV Siera 4base build · FL out-the-door

Breezy EV Siera 4MSRP (verified)$10,995.00
FL sales tax (est.)6% state + 1.0% county surtax on the first $5,000$709.70
Title + initial registration (est.)FLHSMV: $77.25 new title + $225 one-time initial registration$302.25
DeliveryQuoted by the dealer — we never guess this number—
Out-the-door estimate$12,007

est. $192.48/mo — 20% down, 7.5% APR, 60 mo. Confirm real rates with the lender.

METHODOLOGY — what's verified, what's estimated
Cart MSRP and kit prices are sourced and dated (see each model page's receipts). Tax = 6% FL state + 1% county surtax on the first $5,000 (Fla. Stat. §212.05 / §212.054 — surtax varies by county). Fees = $77.25 FLHSMV new title + $225 one-time initial registration. Plate/annual registration vary by weight and county and are small. Delivery is quoted by the dealer — we never guess it. Your firm number comes from the named dealers in the quote step.
Compared & SourcedVERIFIED 10/2026

Green ✓ marks the better verified figure where the two differ. Verdict scored on the verified specs above — factory-LSV status gates the win.

Rather skip the configurator? Get a dealer quote on either cart:

Frequently asked

Is the Advanced EV Advent 4L or the Breezy EV Siera 4 better?
Advanced EV Advent 4L takes it. It wins on the better price and warranty. These sit in different divisions (value vs. premium), so weigh the price gap accordingly.
What do the Advent 4L and Siera 4 cost out the door in Florida?
Florida out-the-door estimates (6% state sales tax + ~1% county surtax on the first $5,000, FLHSMV title + initial registration): the Advanced EV Advent 4L lands at about $10,315 and the Breezy EV Siera 4 at about $12,007, base build, before kits and dealer-quoted delivery. MSRPs are verified and sourced; taxes and fees are labeled estimates with the method disclosed. Configure both carts with kits at golfcartshowdown.com/build/compare.